我有一个空白的 HelloWorld 应用程序:

package tutorials.TestReceivers;

import android.app.Activity;
import android.os.Bundle;

public class TestReceiversActivity extends Activity {
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
    }
}

使用这个 BootReceiver.Java:

package tutorials.TestReceivers;

import android.content.BroadcastReceiver;

public class BootReceiver extends BroadcastReceiver {
public void onReceive(Context context, Intent arg1) {
    Intent intent = new Intent(context, TestReceiversActivity.class);
        context.startActivity(intent);    
    }
}

这个 list :

    <application android:icon="@drawable/icon" android:label="@string/app_name">
        <activity android:name=".TestReceiversActivity"
                  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-permission="android.permission.RECEIVE_BOOT_COMPLETED"
            android:name="development.TestReceiversActivity.BootReceiver" >
            <intent-filter >
                <action android:name="android.intent.action.BOOT_COMPLETED" />
                <action android:name="android.intent.action.SCREEN_ON" />
            </intent-filter>
        </receiver>
    </application>
</manifest>

运行应用程序并将其关闭后。

当我解锁屏幕 (SCREEN_ON) 时没有任何反应。

当我启动 decive 时，我会收到如下消息:

“应用程序TestReceiversActivity(tutorials.TestReceivers进程)意外停止，重试”

最佳答案

折腾了半天，终于解决了上面的问题。

注册 Boot Broadcast Receiver(并根据它打开 Activity)的正确方法是:

空白的 HelloWorld 应用程序 (TestReceiversActivity.java):

package tutorials.TestReceivers;

import android.app.Activity;
public class TestReceiversActivity extends Activity {
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
    }
}

另一个引导接收器类(BootReceiver.java)

package tutorials.TestReceivers;

import android.content.BroadcastReceiver;
public class BootReceiver extends BroadcastReceiver{
@Override
public void onReceive(Context context, Intent intent) {
         Log.d("DAVID", "Hi, Boot reciver was catch!");
         Intent i = new Intent(context, TestReceiversActivity.class);
         i.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
         context.startActivity(i);
       }
}

注意:必须设置flag才能生效!

将 list 设置为:

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

    <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
    <application android:icon="@drawable/icon" android:label="@string/app_name">
            <receiver android:name=".BootReceiver" >
            <intent-filter >
                <action android:name="android.intent.action.BOOT_COMPLETED" />
            </intent-filter>
        </receiver>
        <activity android:name=".TestReceiversActivity"
                  android:label="@string/app_name">
                <intent-filter >
                    <action android:name="android.intent.action.MAIN" />
                    <category android:name="android.intent.category.LAUNCHER" />
                </intent-filter>
        </activity>
    </application>
 </manifest>

尽情享受吧!

关于android - Boot/ScreenOn 广播接收器不工作，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/8115687/