VisibilityPercentageLayout


Source link: https://github.com/tzanou/PercentVisibleLayout

PercentVisibleLayout

PercentVisibleLayout is a layout (extends RelativeLayout) with a custom listener which gives the visibility percentage of the layout every time it is changed.Pixel visibility listener is also available.

Currently supporting

  • Use ONLY inside Listviews,RecyclerViews,ScrollViews,Viewpager etc.
  • Percentage Listener with visible height/width percentage and flags for which part is missing
  • Pixels Listener with visible height/width pixels and flags for which part is missing

Demo

Usage

In your xml file

<com.tzanou.PercentVisibleLayout.PercentVisibleLayout

android:layout_width="300dp"

android:layout_height="300dp"

android:layout_gravity="center"

android:id="@+id/custom_layout">

<TextView

 android:layout_gravity="center"

 android:layout_width="wrap_content"

 android:layout_height="wrap_content"

 android:id="@+id/percentage_text"/>

</com.tzanou.PercentVisibleLayout.PercentVisibleLayout>

In your activity

 mCustomLayout=(PercentVisibleLayout) findViewById(R.id.custom_layout);

mCustomLayout.setOnVisibilityPercentChangedListener(new PercentVisibleLayout.OnVisibilityPercentChanged() {

 @Override

 public void onVisibilityChange(int fromHeight, int fromWidth, int percentageHeight, int percentageWidth) {

  holder.mText.setText( percentageHeight+"%" );

 
}

}
);

More examples and methods on Wiki Page

##Download

dependencies {
 compile 'com.tzanou:PercentVisibleLayout:1.1.2@aar' 
}
 

or Downwnload PercentVisibleLayout.java

##Licensing

Copyright 2015 George Tzanoudakis

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

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