1.shake
animation_1.xml:
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:padding="10dip" android:layout_width="match_parent" android:layout_height="wrap_content"> <TextView android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_marginBottom="10dip" android:text="@string/animation_1_instructions" /> <EditText android:id="@+id/pw" android:layout_width="match_parent" android:layout_height="wrap_content" android:clickable="true" android:singleLine="true" android:password="true" /> <Button android:id="@+id/login" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="@string/googlelogin_login" /> </LinearLayout>
shake.xml:(interpolator表示内插程序)
<?xml version="1.0" encoding="utf-8"?> <translate xmlns:android="http://schemas.android.com/apk/res/android" android:fromXDelta="0" android:toXDelta="10" android:duration="1000" android:interpolator="@anim/cycle_7" />
cycle_7.xml:(cycles循环次数)
<?xml version="1.0" encoding="utf-8"?> <cycleInterpolator xmlns:android="http://schemas.android.com/apk/res/android" android:cycles="7" />
Animation1.java:
import com.example.android.apis.R; import android.app.Activity; import android.os.Bundle; import android.view.View; import android.view.animation.Animation; import android.view.animation.AnimationUtils; public class Animation1 extends Activity implements View.OnClickListener { @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.animation_1); View loginButton = findViewById(R.id.login); loginButton.setOnClickListener(this); } public void onClick(View v) { Animation shake = AnimationUtils.loadAnimation(this, R.anim.shake); findViewById(R.id.pw).startAnimation(shake); } }
效果如图,输入密码,点击“Login”之后,输入框将会在一秒钟之内左右摇晃7个周期。