安卓当中如何在安装之后重启应用

import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.net.Uri;

public class PackageBroadcast extends BroadcastReceiver {
    @Override
    public void onReceive(Context context, Intent intent) {
        String action = intent.getAction();
        String localPkgName = context.getPackageName();//取得MyReceiver所在的App的包名
        Uri data = intent.getData();
        String installedPkgName = data.getSchemeSpecificPart();//取得安装的Apk的包名，只在该app覆盖安装后自启动
        if ((action.equals(Intent.ACTION_PACKAGE_ADDED)
                || action.equals(Intent.ACTION_PACKAGE_REPLACED)) && installedPkgName.equals(localPkgName)) {
            Intent launchIntent = new Intent(context, MainActivity.class);
            launchIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
            context.startActivity(launchIntent);
        }
    }
}

然后修改App的Manifest文件，增加下面的代码即可：

<receiver android:name=".PackageBroadcast">
    <intent-filter>
        <action android:name="android.intent.action.PACKAGE_ADDED" />
        <action android:name="android.intent.action.PACKAGE_REPLACED" />
        <action android:name="android.intent.action.PACKAGE_REMOVED" />
        <data android:scheme="package" />
    </intent-filter>
</receiver>