Android ClipDrawable资源

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本文内容摘自《疯狂Android讲义第三版-李刚著作》

my_clip_1.xml：

<?xml version="1.0" encoding="utf-8"?><clip xmlns:android="http://schemas.android.com/apk/res/android"    android:drawable="@drawable/bg"    android:clipOrientation="horizontal"    android:gravity="center"    ></clip>

layout ImageView：

<ImageView            android:id="@+id/image_clip"            android:layout_width="match_parent"            android:layout_height="match_parent"            android:src="@drawable/my_clip_1"            />

java代码：

package shortcut.song.com.myapplication;import android.graphics.drawable.ClipDrawable;import android.os.Handler;import android.os.Message;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.widget.ImageView;import java.util.Timer;import java.util.TimerTask;public class ResourceActivity extends AppCompatActivity {    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_resource);        final ImageView imageView = (ImageView)findViewById(R.id.image_clip);        final ClipDrawable clipDrawable = (ClipDrawable)imageView.getDrawable();        final Handler mHandler = new Handler()        {            @Override            public void handleMessage(Message msg) {                super.handleMessage(msg);                if (msg.what == 0x1234)                {                    clipDrawable.setLevel(clipDrawable.getLevel() + 180);                }            }        };        final Timer mTimer = new Timer();        mTimer.schedule(new TimerTask() {            @Override            public void run() {                Message msg = new Message();                msg.what = 0x1234;                mHandler.sendMessage(msg);                if (clipDrawable.getLevel() > 10000)                {                    mTimer.cancel();                }            }        }, 0, 320);    }}

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