MainActivity.java
activity_main.xml
bounce.xml
import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.view.View; import android.view.animation.Animation; import android.view.animation.AnimationUtils; import android.widget.Button; import android.widget.ImageView; public class MainActivity extends AppCompatActivity { Button btnBounce; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); btnBounce = (Button) findViewById(R.id.idbtnBounce); btnBounce.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { ImageView image = (ImageView) findViewById(R.id.idImageView); Animation animation = AnimationUtils.loadAnimation(getApplicationContext(), 23 R.anim.bounce); image.startAnimation(animation); } }); } }
activity_main.xml
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:id="@+id/activity_main" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" tools:context=".MainActivity"> <!-- TODO: Update blank fragment layout --> <ImageView android:layout_weight="4" android:layout_width="match_parent" android:layout_height="match_parent" android:id="@+id/idImageView" android:src="@mipmap/ic_launcher"/> <Button android:layout_margin="4dp" android:layout_width="match_parent" android:layout_height="wrap_content" android:id="@+id/idbtnBounce" android:text="Bounce" /> </LinearLayout>
bounce.xml
<set xmlns:android="http://schemas.android.com/apk/res/android" android:fillAfter="true" android:interpolator="@android:anim/bounce_interpolator"> <scale android:duration="1000" android:fromXScale="1.0" android:fromYScale="0.0" android:toXScale="1.0" android:toYScale="1.0" /> </set>
EmoticonEmoticon