How To Implement Click The Certain Area To Do To Action?

This is an example of facebook sliding menu. When sliding, there is 20% space user can see which is similar with facebook. Facebook implements it with clicking anywhere of this 20%

Solution 1:

One way of doing that is as following with OnTouchListener on your activity. You can detect exactly where is touched on the screen.

import android.app.Activity;
import android.os.Bundle;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnTouchListener;
import android.widget.LinearLayout;
import android.widget.Toast;

publicclassAndroidTestActivityextendsActivityimplementsOnTouchListener {
  LinearLayout main;

  @OverridepublicvoidonCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);

    main = (LinearLayout) findViewById(R.id.main_layout);
    main.setOnTouchListener(this); // you need to set the touch listener for your view. And every element around the detection area.
  }

  publicbooleanonTouch(View v, MotionEvent e) {
    if(e.getX() <= main.getWidth() / 5) {
      Toast.makeText(this, "In the %20..", Toast.LENGTH_SHORT).show();
      returntrue;      
    }

    returnfalse;
  }
}

You also need to id your main layout

<?xml version="1.0" encoding="utf-8"?><LinearLayoutxmlns:android="http://schemas.android.com/apk/res/android"android:id="@+id/main_layout"android:layout_width="fill_parent"android:layout_height="fill_parent"android:orientation="vertical" >