Broadcast广播一

最新推荐文章于 2024-07-22 15:29:20 发布

RaylnGuan

最新推荐文章于 2024-07-22 15:29:20 发布

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CC 4.0 BY-SA版权

本文链接：https://blog.youkuaiyun.com/rayln/article/details/39152673

例子：
界面类：

public class BroadcastActivity extends Activity {
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        Button b = (Button)findViewById(R.id.editText1);
        b.setOnClickListener(new OnClickListener() {
			@Override
			public void onClick(View v) {
				Intent i = new Intent();
				i.setAction(Intent.ACTION_EDIT);
				BroadcastActivity.this.sendBroadcast(i);
			}
		});
    }
}

广播接收类：

public class TestReceive extends BroadcastReceiver {
		@Override
		public void onReceive(Context arg0, Intent arg1) {
			System.out.println("onReceive");
		}
}

Mainfast.xml中写入：

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
      package="com.cn"
      android:versionCode="1"
      android:versionName="1.0">
    <uses-sdk android:minSdkVersion="4" />

    <application android:icon="@drawable/icon" android:label="@string/app_name">
        <activity android:name=".BroadcastActivity"
                  android:label="@string/app_name">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
		
		<receiver android:name=".TestReceive">
			<!-- 接收什么广播事件 -->
			<intent-filter>
				<action android:name="android.intent.action.PICK" />
			</intent-filter>
		</receiver>
		
    </application>
</manifest>