android - 如何以编程方式锁定 Activity 操作

Question

想要锁定 Activity 操作，如果用户在 AlertDialog 中点击 Yes，但当我点击 Yes 时似乎没有任何反应。

我正在关注 this解决方案

AlertDialog.Builder alertDialog = new AlertDialog.Builder(AlertDialogActivity.this);

        // Setting Dialog Title
        alertDialog.setTitle("Confirm Delete...");

        // Setting Dialog Message
        alertDialog.setMessage("Are you sure you want delete this?");

        // Setting Icon to Dialog
        alertDialog.setIcon(R.drawable.delete);

        // Setting Positive "Yes" Button
        alertDialog.setPositiveButton("YES", new DialogInterface.OnClickListener() {
            public void onClick(DialogInterface dialog,int which) {

           PackageManager pm = getPackageManager(); 
                    pm.setComponentEnabledSetting(new ComponentName(getApplicationContext(), com.example.lock.MainActivity.class),
                                                  PackageManager.COMPONENT_ENABLED_STATE_DISABLED, PackageManager.DONT_KILL_APP);
            }
        });

        // Setting Negative "NO" Button
        alertDialog.setNegativeButton("NO", new DialogInterface.OnClickListener() {
            public void onClick(DialogInterface dialog, int which) {
            // Write your code here to invoke NO event
            dialog.cancel();
            }
        });

        // Showing Alert Message
        alertDialog.show();

Answer 1

使用这个。它有效:)

` try using this flags to disable lock screen when the activity is started.

getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON|
WindowManager.LayoutParams.FLAG_DISMISS_KEYGUARD|
WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED|
WindowManager.LayoutParams.FLAG_TURN_SCREEN_ON);