Android屏幕超时

Question

我知道可以使用唤醒锁来保持屏幕,cpu等,但我怎样才能以编程方式更改Android手机上的" 屏幕超时 "设置.

Answer 1

public class HelloWorld extends Activity 
{
    private static final int DELAY = 3000;
    int defTimeOut = 0;

    @Override
    protected void onCreate(Bundle savedInstanceState) 
    {
        // Be sure to call the super class.
        super.onCreate(savedInstanceState);

        // See assets/res/any/layout/hello_world.xml for this
        // view layout definition, which is being set here as
        // the content of our screen.
        setContentView(R.layout.hello_world);
        defTimeOut = Settings.System.getInt(getContentResolver(), 
                         Settings.System.SCREEN_OFF_TIMEOUT, DELAY);
        Settings.System.putInt(getContentResolver(), Settings.System.SCREEN_OFF_TIMEOUT, DELAY);
    }

    @Override
    protected void onDestroy() 
    {
        super.onDestroy();
        Settings.System.putInt(getContentResolver(), Settings.System.SCREEN_OFF_TIMEOUT, defTimeOut);
    }
}

并且也不要忘记在清单中添加此权限:

android:name="android.permission.WRITE_SETTINGS"

Answer 2

以上是正确的:

Settings.System.putInt(getContentResolver(),Settings.System.SCREEN_OFF_TIMEOUT, DELAY); 

但也包括清单中的权限:

android:name="android.permission.WRITE_SETTINGS"

Answer 3

该Settings.System提供商提供了一个SCREEN_OFF_TIMEOUT设置,可能是你在找什么.