ImageView.setAlpha(int) has been renamed to ImageView.setImageAlpha(int) to avoid confusion with the new method View.setAlpha(float) introduced in API level 11. View.setAlpha(float) is a general method available on all Views, including ImageView. It applies the specified opacity to the whole view. To achieve this, by default the system creates a temporary buffer (a hardware layer) where the … Read more
There is a bug in 2.1 (Eclair) where the pointer index isn’t checked and is sometimes -1. You can create a custom view that extends ViewPager, override onTouchEvent and wrap the call to super.onTouchEvent in a try/catch. Whilst not a very pretty fix, I remember that it has no side effects (like missed touch events).
Apparently you cannot clone views as stated by these answers: How do I clone a View? How to create Clone-Duplicate View? If you inflated the first view from XML the way to go seems to be inflating the second view from XML, too. To inflate your view from XML put it into an extra layout … Read more
When you are using a Button or an EditText you are actually using AppCompatButton and AppCompatEditText. From the official documentation of the AppCompatEditText. A tint aware EditText. This will automatically be used when you use EditText in your layouts. You should only need to manually use this class when writing custom views
UPDATE 2018: PercentRelativeLayout and PercentFrameLayout are deprecated. Consider using ConstraintLayout Old Answer: So far Android Support library has limited on where to use this: with RelativeLayout android.support.percent.PercentRelativeLayout with FrameLayout android.support.percent.PercentFrameLayout How to use it? Well, first make sure to include the dependency at build.grade(Module: app) in your android app. dependencies { compile ‘com.android.support:percent:23.3.0’ } Then … Read more
There is simpler way of achieving the same after material design 1.2.0 was released. https://developer.android.com/reference/com/google/android/material/bottomsheet/BottomSheetBehavior#setdraggable When calling from BottomSheetDialogFragment: override fun onCreateDialog(savedInstanceState: Bundle?): Dialog { val bottomSheetDialog = super.onCreateDialog(savedInstanceState) as BottomSheetDialog bottomSheetDialog.setOnShowListener { val bottomSheet = bottomSheetDialog .findViewById<FrameLayout>(com.google.android.material.R.id.design_bottom_sheet) if (bottomSheet != null) { val behavior: BottomSheetBehavior<*> = BottomSheetBehavior.from(bottomSheet) behavior.isDraggable = false } } return bottomSheetDialog … Read more
This is an old question that has already been accepted, but the following solution may help someone else: If you check res/values/attrs.xml in Android source code, you’ll see the definition of visibility property like this: <!– Controls the initial visibility of the view. –> <attr name=”visibility”> <!– Visible on screen; the default value. –> <enum … Read more
You dont call setContentView in fragments, in fact you need to return a View from onCreateView. Try replacing: setContentView(new SampleView(this)); With this: return new SampleView(this);
You can access the container’s id by calling ((ViewGroup)getView().getParent()).getId();
If you use a RelativeLayout you can use the align-attributes: <View android:id=”@+id/separator” android:layout_width=”0dp” android:layout_height=”0.3dp” android:layout_below=”@+id/textView1″ android:layout_alignLeft=”@+id/textView1″ android:layout_alignRight=”@+id/textView1″ android:background=”#ffffff” />