Floating Action Button hide and show when scroll in scrollview android?

Floating Action Button hide and show when scroll in scrollview android? - java

I have a nestedscrollview with content like some RelativeLayout, CardViews and textviews. I am using a floatingactionbutton library for some reasons, as well. So I can't use any behavior for it. I don't know how I should handle the scrollchangelistener from scrollview to hide and show the fab dynamically like a behavior.
Now, When programs or output cover full page of intent, the fab is totally disappeared. It may be behind the content. I cant access fab. I want the FloatingActionButton over the scrollview. Or show and hide the fab is also need. Please tell how to achieve that concept?
Any suggestions how to hide and show the fab while scrolling?
<ScrollView
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
xmlns:fab="http://schemas.android.com/apk/res-auto"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_marginLeft="5dp"
android:layout_marginRight="5dp"
android:scrollbars="none"
android:background="#fff"
android:fillViewport="true"
xmlns:android="http://schemas.android.com/apk/res/android">
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".programs.PrintANumber">
<android.support.v7.widget.CardView
android:id="#+id/program_title_card"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="6dp"
app:cardElevation="2dp"
android:layout_below="#id/definition_content"
android:layout_centerHorizontal="true"
app:contentPadding="15dp">
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Print a Number"
android:textColor="#color/colorPrimaryDark"
android:textAlignment="center"
android:textSize="20sp"
android:textStyle="bold"/>
</android.support.v7.widget.CardView>
<android.support.v7.widget.CardView
android:id="#+id/sourcecode_card"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="6dp"
app:cardElevation="2dp"
android:layout_below="#id/program_title_card"
android:layout_centerHorizontal="true"
app:contentPadding="6dp">
<thereisnospon.codeview.CodeView
android:id="#+id/program"
android:layout_width="match_parent"
android:layout_height="match_parent">
</thereisnospon.codeview.CodeView>
</android.support.v7.widget.CardView>
<android.support.v7.widget.CardView
android:id="#+id/output_title_card"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="6dp"
app:cardElevation="2dp"
android:layout_below="#id/sourcecode_card"
android:layout_centerHorizontal="true"
app:contentPadding="15dp">
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Output"
android:textColor="#color/colorPrimaryDark"
android:textAlignment="center"
android:textSize="20sp"
android:textStyle="bold"/>
</android.support.v7.widget.CardView>
<android.support.v7.widget.CardView
android:id="#+id/output_card"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="6dp"
app:cardElevation="2dp"
android:layout_below="#id/output_title_card"
android:layout_centerHorizontal="true"
app:contentPadding="6dp">
<thereisnospon.codeview.CodeView
android:id="#+id/output"
android:layout_width="match_parent"
android:layout_height="match_parent">
</thereisnospon.codeview.CodeView>
</android.support.v7.widget.CardView>
<com.github.clans.fab.FloatingActionMenu
android:id="#+id/menu"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="bottom|end"
android:paddingRight="10dp"
android:paddingBottom="10dp"
android:paddingLeft="10dp"
fab:menu_labels_ellipsize="end"
fab:menu_labels_singleLine="true"
app:menu_icon="#drawable/fab_add"
fab:menu_backgroundColor="#ccffffff"
app:menu_colorNormal="#color/lightGrey"
android:elevation="2dp">
<com.github.clans.fab.FloatingActionButton
android:id="#+id/id_opt1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/opt1"
android:padding="5dp"
fab:fab_size="mini"
fab:fab_label="Option1"
app:rippleColor="#color/colorAccent"
app:fab_colorNormal="#color/colorAccent" />
<com.github.clans.fab.FloatingActionButton
android:id="#+id/id_opt2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/opt2"
android:padding="5dp"
fab:fab_size="mini"
fab:fab_label="Option2"
app:rippleColor="#color/colorAccent"
app:fab_colorNormal="#color/colorAccent" />
</com.github.clans.fab.FloatingActionMenu>
</RelativeLayout>

Try like this.
private int oldScrollYPostion = 0; // inside your class
mScrollView.getViewTreeObserver().addOnScrollChangedListener(new ViewTreeObserver.OnScrollChangedListener() {
#Override
public void onScrollChanged() {
if (mScrollView.getScrollY() > oldScrollYPostion) {
fab.hide();
} else if (mScrollView.getScrollY() < oldScrollYPostion || mScrollView.getScrollY() <= 0) {
fab.show();
}
oldScrollYPostion = mScrollView.getScrollY();
}
});

You are using Floating action inside the scroll view tag. take it out of scroll view.
Use something like this:
<RelativeLayout
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
xmlns:fab="http://schemas.android.com/apk/res-auto"
xmlns:app="http://schemas.android.com/apk/res-auto">
<com.github.clans.fab.FloatingActionMenu
android:id="#+id/menu"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="bottom|end"
android:paddingRight="10dp"
android:paddingBottom="10dp"
android:paddingLeft="10dp"
fab:menu_labels_ellipsize="end"
fab:menu_labels_singleLine="true"
app:menu_icon="#drawable/fab_add"
fab:menu_backgroundColor="#ccffffff"
app:menu_colorNormal="#color/lightGrey"
android:elevation="2dp">
<com.github.clans.fab.FloatingActionButton
android:id="#+id/id_opt1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/opt1"
android:padding="5dp"
fab:fab_size="mini"
fab:fab_label="Option1"
app:rippleColor="#color/colorAccent"
app:fab_colorNormal="#color/colorAccent" />
<com.github.clans.fab.FloatingActionButton
android:id="#+id/id_opt2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/opt2"
android:padding="5dp"
fab:fab_size="mini"
fab:fab_label="Option2"
app:rippleColor="#color/colorAccent"
app:fab_colorNormal="#color/colorAccent" />
</com.github.clans.fab.FloatingActionMenu>
<ScrollView
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
xmlns:fab="http://schemas.android.com/apk/res-auto"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_marginLeft="5dp"
android:layout_marginRight="5dp"
android:scrollbars="none"
android:background="#fff"
android:fillViewport="true"
xmlns:android="http://schemas.android.com/apk/res/android">
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".programs.PrintANumber">
<android.support.v7.widget.CardView
android:id="#+id/program_title_card"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="6dp"
app:cardElevation="2dp"
android:layout_below="#id/definition_content"
android:layout_centerHorizontal="true"
app:contentPadding="15dp">
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Print a Number"
android:textColor="#color/colorPrimaryDark"
android:textAlignment="center"
android:textSize="20sp"
android:textStyle="bold"/>
</android.support.v7.widget.CardView>
<android.support.v7.widget.CardView
android:id="#+id/sourcecode_card"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="6dp"
app:cardElevation="2dp"
android:layout_below="#id/program_title_card"
android:layout_centerHorizontal="true"
app:contentPadding="6dp">
<thereisnospon.codeview.CodeView
android:id="#+id/program"
android:layout_width="match_parent"
android:layout_height="match_parent">
</thereisnospon.codeview.CodeView>
</android.support.v7.widget.CardView>
<android.support.v7.widget.CardView
android:id="#+id/output_title_card"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="6dp"
app:cardElevation="2dp"
android:layout_below="#id/sourcecode_card"
android:layout_centerHorizontal="true"
app:contentPadding="15dp">
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Output"
android:textColor="#color/colorPrimaryDark"
android:textAlignment="center"
android:textSize="20sp"
android:textStyle="bold"/>
</android.support.v7.widget.CardView>
<android.support.v7.widget.CardView
android:id="#+id/output_card"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="6dp"
app:cardElevation="2dp"
android:layout_below="#id/output_title_card"
android:layout_centerHorizontal="true"
app:contentPadding="6dp">
<thereisnospon.codeview.CodeView
android:id="#+id/output"
android:layout_width="match_parent"
android:layout_height="match_parent">
</thereisnospon.codeview.CodeView>
</android.support.v7.widget.CardView>
</RelativeLayout>
</ScrollView>
</RelativeLayout>

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how to hide content under transparent CollapsingToolbarLayout on scroll

I have a CollapsingToolbarLayout with a toolbar and relative Layout.the contentScrim for the CollapsingToolbarLayout is set to transparent.what i want is on scroll,every content that goes under the toolbar should be invisible. this is what i have tried so far
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<TextView
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android:layout_height="wrap_content"
android:layout_below="#id/profile_name"
android:layout_toRightOf="#id/profile_image"
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android:popupTheme="#android:style/ThemeOverlay.Material.Light"
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app:layout_collapseMode="pin"
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android:layout_gravity="left"
android:layout_weight="1"
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android:gravity="left|center_vertical"
android:text="Back" />
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</android.support.v7.widget.Toolbar>
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</android.support.design.widget.AppBarLayout>
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android:layout_width="match_parent"
android:layout_height="match_parent"
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android:paddingTop="50dp"
android:clipToPadding="false"/>
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android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_behavior="#string/appbar_scrolling_view_behavior"
android:id="#+id/nestedContainer"
android:paddingTop="10dp"
android:paddingBottom="10dp"
app:layout_collapseMode="parallax"
app:layout_collapseParallaxMultiplier="0.7">
<LinearLayout
android:id="#+id/linearLayout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignLeft="#id/profile_image"
android:layout_below="#id/personal_statement"
android:layout_marginTop="0dp"
android:gravity="center"
android:orientation="horizontal"
android:tag="sticky">
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android:id="#+id/btnEdit"
android:layout_width="100dp"
android:layout_height="wrap_content"
android:layout_marginLeft="10dp"
android:paddingBottom="6dp"
android:paddingTop="6dp"
fancy:fb_borderColor="#FFFFFF"
fancy:fb_borderWidth="1dp"
fancy:fb_defaultColor="#color/colorPrimary"
fancy:fb_focusColor="#5577bd"
fancy:fb_fontIconSize="25sp"
fancy:fb_iconPaddingRight="5dp"
fancy:fb_iconPosition="left"
fancy:fb_iconResource="#drawable/ic_edit_black_24dp"
fancy:fb_radius="10dp"
fancy:fb_text="Edit"
fancy:fb_textColor="#FFFFFF" />
</LinearLayout>
</android.support.v4.widget.NestedScrollView>
</android.support.design.widget.CoordinatorLayout>
then in my java file i am setting the background for the AppBarLayout like
Bitmap bitmap = ((BitmapDrawable) imageView.getDrawable()).getBitmap();
appBarBackground= UtilManager.blur(bitmap,context);
appBarLayout.setBackgroundDrawable( new BitmapDrawable( context.getResources(), appBarBackground ) );

Add attribute app:layout_collapseMode="parallax" to your RelativeLayout.
Try this:
..........
.................
<RelativeLayout
android:id="#+id/root_layout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="45dp"
android:padding="#dimen/activity_padding"
app:layout_scrollFlags="scroll|enterAlwaysCollapsed"
app:layout_collapseMode="parallax">
...........
.................
Hope this works~

Not displaying OK button in cardview in pop up dialog [duplicate]

This question already has answers here:
Add positive button to Dialog
(3 answers)
Closed 5 years ago.
I am new in android app development. I am making a project in android-studio.I want to show pop up dialog whatever I have declared in xml file but OK button is not showing. If anyone knows about it, please share your answer.xml and java codes are below
image_layout.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:orientation="vertical">
<!--<ImageView android:layout_width="wrap_content"-->
<!--android:layout_height="wrap_content" android:src="YOUR IMAGE"/>-->
<android.support.v7.widget.CardView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/cardViewbluetooth"
app:cardCornerRadius="5dp"
android:layout_gravity="center"
android:layout_marginLeft="20dp"
android:layout_marginRight="20dp"
android:paddingTop="180dp"
>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Bluetooth not enabled"
android:textSize="20dp"
android:textStyle="bold"/>
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Please enable bluetooth in settings and restart this application"
android:textStyle="bold"/>
<Button android:layout_width="wrap_content" android:layout_height="wrap_content"
android:text="OK" android:onClick="dismissListener"/>
</LinearLayout>
</android.support.v7.widget.CardView></LinearLayout>
activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<ScrollView
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fillViewport="true">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
tools:context="litifer.awesome.game.litifer_carddemo.MainActivity"
>
<android.support.v7.widget.CardView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/cardView1"
app:cardCornerRadius="5dp"
android:layout_gravity="center"
android:layout_marginTop="10dp"
app:cardElevation="0dp"
android:clickable="true"
app:cardBackgroundColor="#android:color/transparent"
android:background="#33FF0000"
>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<ImageView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/imageBeacon"
android:src="#drawable/beacon"
android:adjustViewBounds="true"
android:layout_gravity="center"
/>
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/cardView1text"
android:text="Beacon Demo"
android:layout_marginLeft="20dp"
android:layout_marginTop="10dp"
android:textSize="20dp"
android:textStyle="bold"
android:layout_marginRight="20dp"
android:layout_marginBottom="10dp"
/>
</LinearLayout>
</android.support.v7.widget.CardView>
<android.support.v7.widget.CardView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/cardView2"
app:cardCornerRadius="5dp"
android:layout_gravity="center"
android:layout_marginTop="10dp"
app:cardElevation="0dp"
android:clickable="true"
app:cardBackgroundColor="#android:color/transparent"
android:background="#33FF0000"
>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<ImageView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/imageWifi"
android:src="#drawable/wifi"
android:adjustViewBounds="true"
android:layout_gravity="center"
/>
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/cardView2text"
android:text="Wifi Demo"
android:layout_marginLeft="20dp"
android:layout_marginTop="10dp"
android:textSize="20dp"
android:textStyle="bold"
android:layout_marginRight="20dp"
android:layout_marginBottom="10dp"
/>
</LinearLayout>
</android.support.v7.widget.CardView>
<android.support.v7.widget.CardView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/cardView3"
app:cardCornerRadius="5dp"
android:layout_gravity="center"
android:layout_marginTop="10dp"
app:cardElevation="0dp"
android:clickable="true"
app:cardBackgroundColor="#android:color/transparent"
android:background="#33FF0000"
>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<ImageView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/imageCustomerReview"
android:src="#drawable/customerreview"
android:adjustViewBounds="true"
android:layout_gravity="center"
/>
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/cardView3text"
android:text="CustomerReview Demo"
android:layout_marginLeft="20dp"
android:layout_marginTop="10dp"
android:textSize="20dp"
android:textStyle="bold"
android:layout_marginRight="20dp"
android:layout_marginBottom="10dp"
/>
</LinearLayout>
</android.support.v7.widget.CardView>
<android.support.v7.widget.CardView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/cardView4"
app:cardCornerRadius="5dp"
android:layout_gravity="center"
android:layout_marginTop="10dp"
app:cardElevation="0dp"
android:clickable="true"
app:cardBackgroundColor="#android:color/transparent"
android:background="#33FF0000"
>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<ImageView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/imagecardview"
android:src="#drawable/cardview"
android:adjustViewBounds="true"
android:layout_gravity="center"
/>
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/cardView4text"
android:text="CardView Demo"
android:layout_marginLeft="20dp"
android:layout_marginTop="10dp"
android:textSize="20dp"
android:textStyle="bold"
android:layout_marginRight="20dp"
android:layout_marginBottom="10dp"
/>
</LinearLayout>
</android.support.v7.widget.CardView>
<android.support.v7.widget.CardView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/cardView5"
app:cardCornerRadius="5dp"
android:layout_gravity="center"
android:layout_marginTop="10dp"
app:cardElevation="0dp"
android:clickable="true"
app:cardBackgroundColor="#android:color/transparent"
android:background="#33FF0000"
>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<ImageView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/imagedemo"
android:src="#drawable/demo"
android:adjustViewBounds="true"
android:layout_gravity="center"
/>
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/cardView5text"
android:text="Test All Demo"
android:layout_marginLeft="20dp"
android:layout_marginTop="10dp"
android:textSize="20dp"
android:textStyle="bold"
android:layout_marginRight="20dp"
android:layout_marginBottom="10dp"
/>
</LinearLayout>
</android.support.v7.widget.CardView>
</LinearLayout> </ScrollView>
MainActivity.java
public class MainActivity extends AppCompatActivity {
private ImageView beacon,cardview,customerreview,demo,wifi;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
beacon = (ImageView)findViewById(R.id.imageBeacon);
beacon.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
BluetoothAdapter mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
if (mBluetoothAdapter == null) {
// Device does not support Bluetooth
} else {
if (!mBluetoothAdapter.isEnabled()) {
// Bluetooth is not enable :)
Dialog settingsDialog = new Dialog(MainActivity.this);
settingsDialog.getWindow().requestFeature(Window.FEATURE_NO_TITLE);
settingsDialog.setContentView(getLayoutInflater().inflate(R.layout.image_layout
, null));
settingsDialog.show();
}
}
}
});
}
}

try this
Dialog settingsDialog = new Dialog(this);
settingsDialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
settingsDialog.setContentView(R.layout.image_layout);
settingsDialog.getWindow().setBackgroundDrawable(new ColorDrawable(Color.TRANSPARENT));
settingsDialog.setCancelable(true);
settingsDialog.setTitle("Title...");
settingsDialog.show();

Why the buttons are not shown at the bottom of splitted layout?

Helo,
my code:
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:layout_weight="1.0"
>
<LinearLayout
android:id="#+id/LinearLayout1"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="0.4"
android:padding="20sp"
android:orientation="vertical">
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#color/colorAccent"
android:orientation="vertical">
<TableLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:padding="3sp"
android:background="#color/colorAccent"
>
<TableRow
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:weightSum="1"
>
<TextView
android:id="#+id/textView32"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:gravity="center"
android:text="#string/accounts"
android:textAllCaps="false"
android:textSize="18sp"
android:textStyle="bold" />
</TableRow>
</TableLayout>
<TableLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:padding="10sp"
android:background="#color/colorAccent">
<TableRow
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:id="#+id/textView_Account_Name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/account"
android:textStyle="bold"
android:paddingRight="10sp"
/>
<TextView
android:id="#+id/textView_Account_Description"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/account_description"
android:textStyle="bold"
android:paddingRight="10sp"
/>
<TextView
android:id="#+id/textView_Account_Sum"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/account_sum"
android:textStyle="bold"
/>
</TableRow>
</TableLayout>
<!-- Scrollable Area 1 Begin -->
<ScrollView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:scrollbars="none"
android:layout_weight="1"
android:fillViewport="true">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:background="#color/colorAccent">
<TableLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:padding="10sp">
<TableRow
android:layout_width="match_parent"
android:layout_height="match_parent">
</TableRow>
</TableLayout>
</LinearLayout>
</ScrollView>
<!-- Scrollable Area 1 End -->
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#color/colorAccent"
android:orientation="horizontal">
<Button
android:id="#+id/button4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="Konto hinzufügen" />
<Button
android:id="#+id/button3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="Konto löschen" />
</LinearLayout>
</LinearLayout>
</LinearLayout>
<LinearLayout
android:id="#+id/scrollView2"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="0.6"
android:gravity="center|bottom"
android:paddingBottom="10sp"
android:paddingLeft="20sp"
android:paddingRight="20sp"
android:orientation="vertical">
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#color/colorAccent2"
android:orientation="vertical"
android:gravity="center|bottom">
<TableLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#color/colorAccent2"
android:padding="3sp">
<TableRow
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:weightSum="1">
<TextView
android:id="#+id/textView6"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:gravity="center"
android:text="#string/account_input_output"
android:textAllCaps="false"
android:textSize="18sp"
android:textStyle="bold" />
</TableRow>
</TableLayout>
<TableLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#color/colorAccent2"
android:padding="10sp">
<TableRow
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:id="#+id/textView_IO_Date"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:paddingRight="10sp"
android:text="#string/account_io_date"
android:textStyle="bold" />
<TextView
android:id="#+id/textView_IO_Nr"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:paddingRight="10sp"
android:text="#string/account_io_description"
android:textStyle="bold" />
<TextView
android:id="#+id/textView_IO_Ausgabe"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:paddingRight="10sp"
android:text="#string/account_io_ausgabe"
android:textStyle="bold" />
<TextView
android:id="#+id/textView_IO_Eingabe"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:paddingRight="10sp"
android:text="#string/account_io_eingabe"
android:textStyle="bold" />
<TextView
android:id="#+id/textView_IO_Sum"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/account_sum"
android:textStyle="bold" />
</TableRow>
</TableLayout>
<ScrollView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="1"
android:fillViewport="true"
android:scrollbars="none">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#color/colorAccent2"
android:orientation="vertical">
<TableLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:padding="10sp">
<TableRow
android:layout_width="match_parent"
android:layout_height="match_parent">
</TableRow>
</TableLayout>
</LinearLayout>
</ScrollView>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#color/colorAccent2"
android:orientation="horizontal">
<Button
android:id="#+id/button6"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="Transaktion hinzufügen"
/>
<Button
android:id="#+id/button7"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="Transaktion löschen" />
</LinearLayout>
</LinearLayout>
</LinearLayout>
My problem is:
The two buttons button6 and button7 below aren't displayed on screen. On android studio they are, but not on my mobile phone.
What am I doing wrong?
This is displayed in android studio gui builder
This is display on android emulator or real device

Hmm... I don't know if it's the best solution.
But I set the bottom padding of the second linear layout to:
20sp + 20 sp + black stripe on the bottom sp + 20 sp
Context context = rootView.getContext();
Resources resources = context.getResources();
int resourceId = resources.getIdentifier("navigation_bar_height", "dimen", "android");
int width = resources.getDimensionPixelSize(resourceId);
LinearLayout l = (LinearLayout)rootView.findViewById(R.id.scrollView2);
float density = context.getResources().getDisplayMetrics().density;
int paddingDp = (int)(20 * density);
l.setPadding(paddingDp, 0, paddingDp, paddingDp + paddingDp + width);

Drawer layout - navigation header is scrolling ANDROID

I've got a problem. There is a a scrollable menu, but the Textview is scrolling too. I don't want to scrolling it.
Here is main XML:
<android.support.v4.widget.DrawerLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#ffffff" >
<android.support.v7.widget.Toolbar
android:id="#+id/toolbarInner"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize">
</android.support.v7.widget.Toolbar>
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<RelativeLayout android:id="#+id/content_frame_container"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#ffffff"
android:layout_below="#+id/toolbar_app_bar_layout">
<FrameLayout
android:id="#+id/content_frame"
android:layout_width="match_parent"
android:layout_height="match_parent">
</FrameLayout>
</RelativeLayout>
<android.support.design.widget.AppBarLayout
android:id="#+id/toolbar_app_bar_layout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="#style/ThemeOverlay.AppCompat.Dark.ActionBar">
<android.support.design.widget.TabLayout
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="#+id/sliding_tabs"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="#+id/toolbar"
app:tabMode="scrollable"
app:paddingStart="16dp"
app:tabPaddingStart="16dp"
app:tabPaddingEnd="16dp"
app:tabMinWidth="96dp"
app:tabGravity="center" />
</android.support.design.widget.AppBarLayout>
<android.support.v4.view.ViewPager
android:id="#+id/pager"
android:layout_width="fill_parent"
android:layout_height="match_parent"
android:layout_alignParentBottom="true"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true" />
</RelativeLayout>
<android.support.design.widget.NavigationView
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="#+id/navigation_view"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="start"
android:background="#color/md_white_1000"
app:headerLayout="#layout/nav_drawer_header"
app:menu="#menu/menu_drawer"
app:itemTextAppearance="#style/TextAppearance.AppCompat.Menu"
android:clipToPadding="false">
<TextView
android:id="#+id/nav_drawer_wallet_id"
android:layout_width="177dp"
android:layout_height="wrap_content"
android:textSize="15sp"
android:layout_marginTop="8dp"
android:layout_marginLeft="16dp"
android:layout_marginBottom="8dp"/>
<TextView
android:id="#+id/nav_drawer_total_credits"
android:layout_width="182dp"
android:layout_height="wrap_content"
android:textSize="16sp"
android:layout_marginTop="200dp"
android:layout_marginLeft="16dp" />
<TextView
android:id="#+id/nav_drawer_username"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:textSize="22sp"
android:layout_marginTop="150dp"/>
<!--<FrameLayout-->
<!--android:layout_width="match_parent"-->
<!--android:layout_height="wrap_content"-->
<!--android:layout_gravity="bottom"-->
<!--android:background="#color/md_white_1000"-->
<!--android:elevation="4dp"-->
<!--android:layout_marginBottom="-96dp">-->
<!--<Button android:id="#+id/navigation_button_footer"-->
<!--android:layout_width="match_parent"-->
<!--android:layout_height="match_parent"-->
<!--android:text=""-->
<!--android:textSize="13sp"-->
<!--android:textColor="#color/md_grey_800"-->
<!--android:lines="3"-->
<!--android:gravity="center"-->
<!--style="#style/Widget.AppCompat.ActionButton"-->
<!--android:paddingTop="20dp"-->
<!--android:paddingLeft="20dp"-->
<!--android:paddingRight="20dp"-->
<!--android:paddingBottom="20dp"/>-->
<!--</FrameLayout>-->
</android.support.design.widget.NavigationView>
<RelativeLayout
android:id="#+id/lay_connection"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginTop="#dimen/actmain_margintop"
android:background="#3c3c3c"
android:visibility="gone" >
<TextView
android:id="#+id/text_error"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:gravity="center"
android:text="#string/error_no_internet"
android:textColor="#color/md_white_1000"
android:textSize="#dimen/twentyfive" />
<RelativeLayout
android:id="#+id/lay_dialog"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:visibility="gone" >
<ProgressBar
android:id="#+id/progressBar1"
style="?android:attr/progressBarStyleLarge"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true" />
<TextView
android:id="#+id/textView2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#+id/progressBar1"
android:layout_centerHorizontal="true"
android:text="#string/error_no_internet"
android:textColor="#color/md_white_1000"
android:textSize="#dimen/twentyfive" />
</RelativeLayout>
</RelativeLayout>
</android.support.v4.widget.DrawerLayout>
I mean about this #+id/nav_drawer_total_credits for example.
EDIT
Here is nav_drawer_header.xml:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#color/material_color_primary">
<android.support.v7.widget.Toolbar
android:id="#+id/drawer_toolbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="?attr/colorPrimary"
app:titleTextAppearance="#style/AppTheme.Widget.Toolbar.Title"
android:theme="#style/AppTheme.Widget.Toolbar"
app:popupTheme="#style/ThemeOverlay.AppCompat.Light"
android:paddingBottom="0dp"
android:layout_margin="0dp"/>
<ImageView
android:layout_width="96dp"
android:layout_height="96dp"
android:layout_gravity="center_horizontal"
android:src="#drawable/ic_launcher"/>
<TextView android:id="#+id/nav_drawer_username"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:textSize="22sp"
android:layout_marginTop="0dp"/>
<TextView android:id="#+id/nav_drawer_total_credits"
android:layout_width="182dp"
android:layout_height="wrap_content"
android:textSize="15sp"
android:layout_marginTop="8dp"
android:layout_marginLeft="16dp"
android:text="Credits:"/>
<TextView android:id="#+id/nav_drawer_wallet_id"
android:layout_width="177dp"
android:layout_height="wrap_content"
android:textSize="15sp"
android:layout_marginTop="8dp"
android:layout_marginLeft="16dp"
android:layout_marginBottom="8dp"
android:text="Wallet ID:"/>
</LinearLayout>
And the JAVA code:
mDrawerLayout = (DrawerLayout)findViewById(R.id.drawer_layout);
mDrawerLayout.setDrawerShadow(R.drawable.drawer_shadow, GravityCompat.END);
mDrawerLay = (NavigationView)findViewById(R.id.navigation_view);
mDrawerLay.setNavigationItemSelectedListener(this);
navigationTotalCreditTextView = (TextView)findViewById(R.id.nav_drawer_total_credits);
navigationTotalCreditTextView.setText("Total Credits: " + PreferenceConnector.readInteger(aiContext,
PreferenceConnector.WALLETPOINTS, 0));
navigationWalletIDText = (TextView)findViewById(R.id.nav_drawer_wallet_id);
navigationWalletIDText.setText("Wallet ID: " + PreferenceConnector.readString(aiContext,
PreferenceConnector.WALLETID, ""));
navigationUsernameText = (TextView)findViewById(R.id.nav_drawer_username);
navigationUsernameText.setText(PreferenceConnector.readString(aiContext,
PreferenceConnector.USERNAME, ""));
Here is how it should be and how it is when no scrolling menu
Here is how it looks like after scrolling down

How to animate changing the alpha of a FrameLayout's foreground drawable?

I am trying to find a way to animate changing the alpha of a FrameLayout's foreground drawable, but i cant seem to find a way of doing it.
If someone could point me in the right direction as to how i should go about this i would be hugely grateful.
The relevant code is below:
XML layout file:
<com.bacon.corey.audiotimeshift.SlidingUpPanelLayout xmlns:sothree="http://schemas.android.com/apk/res-auto"
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/sliding_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="bottom"
sothree:panelHeight="0dp"
sothree:shadowHeight="10dp"
sothree:paralaxOffset="100dp"
sothree:fadeColor="#android:color/transparent"
>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:padding="0dp"
android:layout_width="match_parent"
android:layout_height="match_parent"
>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:orientation="vertical"
android:padding="0dip"
android:gravity="center_horizontal"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_margin="0dp"
android:id="#+id/recordingListMainLayout"
android:foreground="#drawable/dim_shadow_shape_dark"
>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:orientation="vertical"
android:padding="0dp"
android:gravity="center_horizontal"
android:layout_width="match_parent"
android:layout_height="match_parent"
>
<FrameLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/mainLayoutContainer"/>
<!--
<android.support.v4.view.ViewPager
android:id="#+id/viewPager"
android:layout_width="match_parent"
android:layout_height="0px"
android:layout_weight="1"
android:padding="0dp"
android:layout_margin="0dp"
/>
-->
</LinearLayout>
</FrameLayout>
<com.bacon.corey.audiotimeshift.FloatingActionsMenu
android:id="#+id/fabMenu"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="bottom|right"
android:gravity="right"
app:fab_addButtonColorNormal="#color/holo_red_light"
app:fab_addButtonColorPressed="#color/c16"
app:fab_addButtonPlusIconColor="#color/white"
app:fab_expandDirection="up"
android:layout_marginTop="10dp"
android:layout_marginRight="10dp"
android:layout_marginBottom="10dp"
android:layout_marginEnd="10dp"
android:layout_alignParentRight="true"
android:layout_alignParentBottom="true"
>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:gravity="center_vertical"
>
<FrameLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#drawable/textview_rounded_corner_background_fam"
>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Option Four"
android:textAlignment="center"
android:padding="6dp"
android:fontFamily="sans-serif-medium"
/>
</FrameLayout>
<com.bacon.corey.audiotimeshift.FloatingActionButton
android:layout_width="wrap_content"
android:layout_height="wrap_content"
app:fab_colorNormal="#color/c15"
app:fab_colorPressed="#color/c15"
app:fab_size="mini"
/>
</LinearLayout>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:gravity="center_vertical"
>
<FrameLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#drawable/textview_rounded_corner_background_fam"
>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Option Four"
android:textAlignment="center"
android:padding="6dp"
android:fontFamily="sans-serif-medium"
/>
</FrameLayout>
<com.bacon.corey.audiotimeshift.FloatingActionButton
android:layout_width="wrap_content"
android:layout_height="wrap_content"
app:fab_colorNormal="#color/c8"
app:fab_colorPressed="#color/c8"
app:fab_size="mini"
/>
</LinearLayout>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:gravity="center_vertical"
>
<FrameLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#drawable/textview_rounded_corner_background_fam"
>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Option Four"
android:textAlignment="center"
android:padding="6dp"
android:fontFamily="sans-serif-medium"
/>
</FrameLayout>
<com.bacon.corey.audiotimeshift.FloatingActionButton
android:layout_width="wrap_content"
android:layout_height="wrap_content"
app:fab_colorNormal="#color/a1"
app:fab_colorPressed="#color/a1"
app:fab_size="mini"
/>
</LinearLayout>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:gravity="center_vertical"
>
<FrameLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#drawable/textview_rounded_corner_background_fam"
>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Option Four"
android:textAlignment="center"
android:padding="6dp"
android:fontFamily="sans-serif-medium"
/>
</FrameLayout>
<com.bacon.corey.audiotimeshift.FloatingActionButton
android:layout_width="wrap_content"
android:layout_height="wrap_content"
app:fab_colorNormal="#color/a2"
app:fab_colorPressed="#color/a2"
app:fab_size="mini"
/>
</LinearLayout> </com.bacon.corey.audiotimeshift.FloatingActionsMenu>
</RelativeLayout>
<FrameLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center|top"
android:textSize="16sp"
android:id="#+id/slideUpPanel"
>
</FrameLayout>
</com.bacon.corey.audiotimeshift.SlidingUpPanelLayout>
And the java code that i use to change the alpha of the foreground:
fabMain.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
boolean expanded = fabMenu.toggle();
mainActivity.getDimShadowDrop().setForeground(getResources().getDrawable(R.drawable.dim_shadow_shape_light));
mainActivity.getDimShadowDrop().getForeground().setAlpha(180);
if (expanded){
((MainActivity)getActivity()).replaceFragment(new RecordFragment(), R.id.slideUpPanel, false);
slidingUpPanelLayout.expandPanel();
defaultColor = getResources().getColor(R.color.recordDefaultColor);
}
}
});

Instead of the typical way you do it with an Animation which is from 0 to 1 you use 0 to 255. Something like this will pulse the Foreground of a CardView.
public static void pulseForeground(CardView view, long duration) {
ObjectAnimator animator = ObjectAnimator.ofInt(view.getForeground(), "alpha", 0, 255);
animator.setDuration(duration);
animator.setStartDelay(20);
animator.setRepeatMode(Animation.REVERSE);
animator.setRepeatCount(Animation.INFINITE);
animator.start();
}

Develop Reference

Java is a programming language and computing platform first released by Sun Microsystems in 1995.

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