Pop up the dialog from the bottom of the page, gradually go down when it disappears

I want to achieve an effect, and it will pop up gradually from the bottom up. As shown in:

1. When the Show button is clicked, a dialog box pops up slowly from the bottom.

2. When the dialog is disabled, the slowly moving of the dialog disappears to the bottom. Very smooth.

 

 

Implementation Method:

Write the following code in the activity:

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public class MainActivity extends Activity {    Button button1;     @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);                 button1 = (Button)findViewById(R.id.button1);        button1.setOnClickListener(mOnClickListener);    }     OnClickListener mOnClickListener = new View.OnClickListener(){         @Override        public void onClick(View v) {            //TODO Auto-generated method stub               AlertDialog dialog = new AlertDialog.Builder(MainActivity.this)                      .setTitle("title").setMessage("message").create();              <span style="color: #ff0000;"><strong>Window window = dialog.getWindow();              window.setGravity(Gravity.BOTTOM);  // You can set the dialog display position here.            window.setWindowAnimations(R.style.mystyle);  // Add an animation </strong> </span>            dialog.show();         }             }; }

Prepare a style resource file and createMystyle

  <style name="mystyle" parent="android:Animation">        <item name="@android:windowEnterAnimation">@anim/dialog_enter</item>        <item name="@android:windowExitAnimation">@anim/dialog_exit</item></style>

Two animations are used in this mystyle:

Dialog_enter.xml

<?xml version="1.0" encoding="utf-8"?>    <set xmlns:android="http://schemas.android.com/apk/res/android" >        <translate            android:duration="600"            android:fromYDelta="100%p" />    </set>

Dialog_exit.xml

<?xml version="1.0" encoding="utf-8"?><set xmlns:android="http://schemas.android.com/apk/res/android" >    <translate        android:duration="600"        android:toYDelta="100%p" /></set>

So far.

 

Code explanation:

1. Set an animation style for Windows where dialog is located.

2. This style specifies the animation (dialog_enter) and the animation (dialog_exit) that the form (Windows) enters)

3. In the input animation dialog_enter, A translate change is written to specify the position starting from the 100% position of its parent container. The 100% position of its parent container is outside the screen and cannot be seen. This is the start point. If no end point is specified, the position (to be displayed) of the end point is displayed by default ).

4. Similarly, dialog_exit defines the animation when leaving. The animation does not specify the start position, and the end position is the 100% position of its parent container, so that it gradually disappears out of the screen.

Android: toydelta = "100% P" 100% indicates the 100% position of its parent container

If you write

Android: toydelta = "100%" indicates the starting position of 100%.

Refer:

Http://www.linuxidc.com/Linux/2012-04/59153.htm

Http://blog.csdn.net/ztp800201/article/details/7387668