我正在尝试生成一些日志,并在电源按钮点击后在屏幕上显示吐司。 但它似乎没有用。这是代码:
的AndroidManifest.xml:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.test.pbtest"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="17" />
<uses-permission android:name="android.permission.ACTION_SHUTDOWN" />
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name="com.test.pbtest.MainActivity"
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="com.test.pbtest.MyReceiver">
<intent-filter>
<action android:name="android.intent.action.SCREEN_OFF"></action>
<action android:name="android.intent.action.SCREEN_ON"></action>
<action android:name="android.intent.action.ACTION_POWER_CONNECTED"></action>
<action android:name="android.intent.action.ACTION_POWER_DISCONNECTED"></action>
<action android:name="android.intent.action.ACTION_SHUTDOWN"></action>
</intent-filter>
</receiver>
</application>
</manifest>
MyReceiver.java类:
package com.test.pbtest;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.util.Log;
import android.widget.Toast;
public class MyReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context arg0, Intent arg1) {
// TODO Auto-generated method stub
Log.v("Hurray!", "Power button was clicked!");
Toast.makeText(arg0, "power button clicked",Toast.LENGTH_LONG).show();
}
}
MainActivity.java类:
package com.test.pbtest;
import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
public class MainActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.activity_main, menu);
return true;
}
}
据我所知,我不需要明确注册我的接收器,因为我在清单文件中使用过它。请指导我哪里出错了。
答案 0 :(得分:0)
您需要在AndroidManifest.xml中添加ACTION_SHUTDOWN
权限:
<uses-permission android:name="android.permission.ACTION_SHUTDOWN" />
答案 1 :(得分:0)
由于某种原因,你必须在运行时注册你的接收器..你可以通过服务注册它