活动在手机启动时未开始，Android BroadcastReceiver

Question

我想在移动设备启动时启动一个活动。当我从手机启动应用程序时，它很好，但当我重新启动手机时，活动不会启动。LogCat中没有错误。我发布了我的完整代码，以便你们能够理解。

这是我的

• 主要活性

  导入android.app.Activity；导入android.content.Intent；导入android.net.Uri；导入android.os.Bundle；

  公共类MainActivity扩展Activity｛

  @Override
  protected void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
      setContentView(R.layout.activity_main);
      Intent browserIntent = new Intent(Intent.ACTION_VIEW, Uri.parse("http://www.google.com/"));
      startActivity(browserIntent);
  }
  

  }

这是我的另一班

• BootReciver

  importandroid.content.BroadcastReceiver；导入android.content.Context；导入android.content.Intent；

  公共类BootReciever扩展BroadcastReceiver｛

  @Override
  public void onReceive(final Context context, Intent intent) {
      // TODO Auto-generated method stub
  
      new Thread(new Runnable() {
          @Override
          public void run() {
              try {
                  Thread.sleep(5000);
              } catch (InterruptedException e) {
              }
              Intent myIntent = new Intent(context, MainActivity.class);
              myIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
              context.startActivity(myIntent);
          }
      }).start();
  }
  

  }

• mainfest XML

  <uses-permission android:name="android.permission.VIBRATE" >
  </uses-permission>
  <uses-sdk
      android:minSdkVersion="11"
      android:targetSdkVersion="21" />
  <application
      android:allowBackup="true"
      android:icon="@drawable/ic_launcher"
      android:label="@string/app_name"
      android:theme="@style/AppTheme" >
      <activity
          android:name=".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.android.bitter.BootReciever"
          android:enabled="true"
          android:permission="android.permission.RECEIVE_BOOT_COMPLETED" >
          <intent-filter>
              <action android:name="android.intent.action.BOOT_COMPLETED" />
              <action android:name="android.intent.action.QUICKBOOT_POWERON" />
              <category android:name="android.intent.category.DEFAULT" />
          </intent-filter>
      </receiver>
  </application>
  

Answer 1

尝试这个

@Override
public void onReceive(final Context context, Intent intent) {
    Intent myIntent = new Intent(context, MainActivity.class);
    myIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
    context.startActivity(myIntent);
}

和

<uses-permission android:name="android.permission.VIBRATE" >
</uses-permission>
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
<uses-sdk
    android:minSdkVersion="11"
    android:targetSdkVersion="21" />
<application
    android:allowBackup="true"
    android:icon="@drawable/ic_launcher"
    android:label="@string/app_name"
    android:theme="@style/AppTheme" >
    <activity
        android:name=".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.android.bitter.BootReciever"
        android:enabled="true"         >
        <intent-filter>
            <action android:name="android.intent.action.BOOT_COMPLETED" />
            <action android:name="android.intent.action.QUICKBOOT_POWERON" />
            <category android:name="android.intent.category.DEFAULT" />
        </intent-filter>
    </receiver>
</application>