相关疑难解决方法(0)

我的应用程序是在汽车停靠事件上启动的,我想在我插入设备时唤醒手机(由系统完成)并解锁屏幕.是不可能的？

我想在我的应用程序中实现屏幕锁定功能,但目前我无法让它工作.我有一个alertDialog,它将通过使用几个按钮请求用户输入.如果用户按"否",我想锁定屏幕(无限期,不是一段时间).以编程方式锁定屏幕的最佳方法是什么？我尝试过使用以下内容,但是,虽然我的对话框被取消,但屏幕永远不会锁定.

KeyguardManager keyguardManager = (KeyguardManager)getSystemService(Activity.KEYGUARD_SERVICE); 
                        KeyguardLock lock = keyguardManager.newKeyguardLock(KEYGUARD_SERVICE);
                        lock.reenableKeyguard();

mycode的

import android.app.Activity;
import android.app.AlertDialog;
import android.app.KeyguardManager;
import android.app.KeyguardManager.KeyguardLock;
import android.content.DialogInterface;
import android.os.Bundle;
import android.view.Window;

public class MyApp extends Activity {
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        // TODO Auto-generated method stub
        this.getWindow().requestFeature(Window.FEATURE_NO_TITLE);
        super.onCreate(savedInstanceState);
        setContentView(R.layout.splash);


        startDialog();
    }



    private void startDialog() {

        AlertDialog.Builder myAlertDialog = new AlertDialog.Builder(this);

        myAlertDialog.setMessage("Do you want to exit the application?");
        myAlertDialog.setPositiveButton("Yes",
                new DialogInterface.OnClickListener() {

                    // do something when the button is clicked
                    public void onClick(DialogInterface arg0, int …