慕课动画-爱代码爱编程
逐帧动画
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/activity_frame_animation"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context="com.animation.frame.FrameAnimationActivity">
<View
android:id="@+id/view"
android:background="@drawable/loading"
android:layout_centerInParent="true"
android:layout_width="300dp"
android:layout_height="300dp" />
<LinearLayout
android:layout_alignParentBottom="true"
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<Button
android:id="@+id/btnStart"
android:text="Start"
android:onClick="onClick"
android:layout_width="0dp"
android:layout_weight="1"
android:layout_height="wrap_content" />
<Button
android:id="@+id/btnStop"
android:text="Stop"
android:onClick="onClick"
android:layout_width="0dp"
android:layout_weight="1"
android:layout_height="wrap_content" />
</LinearLayout>
</RelativeLayout>
loading.xml
<?xml version="1.0" encoding="utf-8"?>
<animation-list android:oneshot="true"
xmlns:android="http://schemas.android.com/apk/res/android">
<item
android:drawable="@drawable/frame_1"
android:duration="100" />
<item
android:drawable="@drawable/frame_2"
android:duration="100" />
<item
android:drawable="@drawable/frame_3"
android:duration="100" />
</animation-list>
package com.animation.frame;
import android.graphics.drawable.AnimationDrawable;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import com.animation.R;
public class FrameAnimationActivity extends AppCompatActivity {
private AnimationDrawable animationDrawable;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_frame_animation);
View view = findViewById(R.id.view);
animationDrawable = (AnimationDrawable) view.getBackground();
animationDrawable.setOneShot(true);
}
public void onClick(View view) {
switch (view.getId()) {
case R.id.btnStart:
animationDrawable.start();
break;
case R.id.btnStop:
animationDrawable.stop();
break;
}
}
}
视图动画