Android 中如何设置屏幕亮度？

发布于 2024-12-03 12:07:34 字数 98 浏览 0 评论 0 原文

我想要一个使用 SeekBar 调整屏幕亮度的对话框。

如何使用 SeekBar 显示自定义对话框来调整屏幕亮度？

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他是夢罘是命 2024-12-10 12:07:34

您可以使用此 API。这将改变窗口的屏幕亮度，而不是整个系统的屏幕亮度。

        // Make the screen full bright for this activity.
        WindowManager.LayoutParams lp = getWindow().getAttributes();
        lp.screenBrightness = 1.0f;

        getWindow().setAttributes(lp);

You can use this API. This will change screen brightness of your window and not of the whole system.

        // Make the screen full bright for this activity.
        WindowManager.LayoutParams lp = getWindow().getAttributes();
        lp.screenBrightness = 1.0f;

        getWindow().setAttributes(lp);

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无敌元气妹 2024-12-10 12:07:34

这个代码片段应该对您有帮助

pdlg = ProgressDialog.show(getParent(), "Loading...", ""); 
WindowManager.LayoutParams lp = pdlg.getWindow().getAttributes();
p.dimAmount=0.0f;        //Dim Amount
pdlg.getWindow().setAttributes(lp);  //Applying properties to progress dialog
pdlg.dismiss(); //Dismiss the dialog

This code snippet should help you

pdlg = ProgressDialog.show(getParent(), "Loading...", ""); 
WindowManager.LayoutParams lp = pdlg.getWindow().getAttributes();
p.dimAmount=0.0f;        //Dim Amount
pdlg.getWindow().setAttributes(lp);  //Applying properties to progress dialog
pdlg.dismiss(); //Dismiss the dialog

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酒与心事 2024-12-10 12:07:34

嘿，你可以像这样设置系统亮度：

 //Set the system brightness using the brightness variable value
System.putInt(cResolver, System.SCREEN_BRIGHTNESS, brightness);
//Get the current window attributes
LayoutParams layoutpars = window.getAttributes();
//Set the brightness of this window
layoutpars.screenBrightness = brightness / (float)255;
//Apply attribute changes to this window
window.setAttributes(layoutpars);

或者你可以参考这个完整的教程

Hey you can set the system brightness like this:

 //Set the system brightness using the brightness variable value
System.putInt(cResolver, System.SCREEN_BRIGHTNESS, brightness);
//Get the current window attributes
LayoutParams layoutpars = window.getAttributes();
//Set the brightness of this window
layoutpars.screenBrightness = brightness / (float)255;
//Apply attribute changes to this window
window.setAttributes(layoutpars);

Or you may refer on this complete tutorial

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