一个安卓初学者的试水，7.0以后的好像会被系统拦截，稍后再研究...
创建MyBroadcastReceiver public class MyBroadcastReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
Toast.makeText(context,intent.getStringExtra("info"),Toast.LENGTH_SHORT).show();
}
}
配置Androidmanifest.xml
<uses-permission android:name="com.android.action.SEND_NNN"/>
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:roundIcon="@mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="@style/AppTheme">
<activity android:name=".MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<receiver
android:name=".MyBroadcastReceiver"
android:enabled="true"
android:exported="true"
android:permission="com.android.action.SEND_NNN">
<intent-filter>
<action android:name="com.android.action.NNN"/>
</intent-filter>
</receiver>
</application>
在activity_main.xml中写一个按钮点击发送广播
<Button
android:id="@+id/button"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textAllCaps="false"
android:text="Send BroadCast"/>
最后在MainActivity中注册点击事件
public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
/*Intent intent = new Intent();
intent.setAction("com.broadcast.test");
intent.putExtra("info","略略略");
sendBroadcast(intent);*/
Button button = (Button) findViewById(R.id.button);
button.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent intent = new Intent();
intent.setAction("com.android.action.NNN");
intent.putExtra("info","略略略");
sendBroadcast(intent);
}
});
}
}
然后就可以了
