解决Android帧动画在Oncreate中启动只显示第一帧
程序员文章站
2023-12-29 14:25:34
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做了个简单的帧动画,在onCreate方法中start,发现只能看到第一帧
* 上发现一个解决办法
或者在Activity中的onWindowFocusChanged方法中start
<?xml version="1.0" encoding="utf-8"?> <animation-list xmlns:android="http://schemas.android.com/apk/res/android" android:oneshot="false" > <item android:drawable="@drawable/fire01" android:duration="200"/> <item android:drawable="@drawable/fire02" android:duration="200"/> <item android:drawable="@drawable/fire03" android:duration="200"/> <item android:drawable="@drawable/fire04" android:duration="200"/> <item android:drawable="@drawable/fire05" android:duration="200"/> <item android:drawable="@drawable/fire06" android:duration="200"/> <item android:drawable="@drawable/fire07" android:duration="200"/> <item android:drawable="@drawable/fire08" android:duration="200"/> <item android:drawable="@drawable/fire09" android:duration="200"/> </animation-list>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" > <ImageView android:id="@+id/fire_img" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_centerInParent="true" android:background="@drawable/fire_anim" /> </RelativeLayout>
ImageView fireImg = null; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); ImageView fireImg = (ImageView) findViewById(R.id.fire_img); final AnimationDrawable animDrawable = (AnimationDrawable) fireImg .getBackground(); animDrawable.start(); }
* 上发现一个解决办法
@Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); ImageView fireImg = (ImageView) findViewById(R.id.fire_img); final AnimationDrawable animDrawable = (AnimationDrawable) fireImg .getBackground(); fireImg.post(new Runnable() { @Override public void run() { animDrawable.start(); } }); }
或者在Activity中的onWindowFocusChanged方法中start
@Override public void onWindowFocusChanged(boolean hasFocus) { super.onWindowFocusChanged(hasFocus); if (fireImg != null) { AnimationDrawable animDrawable = (AnimationDrawable) fireImg .getBackground(); animDrawable.start(); } }