Android:如何在单击按钮时隐藏标题栏 [英] Android: how to hide title bar on button click

问题描述

使用requestWindowFeature(Window.FEATURE_NO_TITLE);

使用按钮使其全屏显示时，当尝试隐藏标题栏时，应用程序崩溃

When using the button to make it full screen which when tries to hide the Title bar the app crashes

static int vari = 0;
public void fsc(){
    ib = (ImageButton) findViewById(R.id.fulls);
    ib.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            Toast.makeText(getApplicationContext(), "Full-Screen", Toast.LENGTH_LONG).show();
            if(vari == 0)
            {
requestWindowFeature(Window.FEATURE_NO_TITLE);
   getWindow().clearFlags(WindowManager.LayoutParams.FLAG_FORCE_NOT_FULLSCREEN);

getWindow().addFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);
                    vari = 1;

            }
        });

我想按按钮使其全屏显示(同时隐藏状态栏和标题栏)

I wanted to make it full screen (hiding both status and title bar) on the button press

请注意:这也称为片段

推荐答案

检查清单中是否设置了全屏主题?

Check if you have the fullscreen theme set in the manifest?

//如果不将其添加到清单中

//if not add this in your manifest

android:theme ="@ android:style/Theme.NoTitleBar.Fullscreen"

android:theme="@android:style/Theme.NoTitleBar.Fullscreen"

//隐藏状态栏

getWindow().addFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);

getWindow().addFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);

//显示状态栏

getWindow().clearFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);

getWindow().clearFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);

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