Android Dialog 设置只遮挡StatusBar 不遮挡NavigationBar 的方案

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本文提供了两种Android Dialog的设置方案，旨在实现Dialog只遮挡StatusBar而不遮挡NavigationBar的效果。方案一通过设置背景图片并在WindowManager中调整高度；方案二则提供另一种实现方法。

方案一：

设置背景图片，然后在wm中设置高度为减去navigationbar的高度的，例如这里需要剪掉30

public void click2(View view) {


        MyDialog alertDialog  = new MyDialog(this,R.style.AppThemeDialogFull);
        alertDialog.setTitle("test4");
        alertDialog.show();

    }

<style name="AppThemeDialog" parent="ThemeOverlay.AppCompat.Dialog.Alert">
        <!-- Customize your theme here. -->
        <item name="android:backgroundDimAmount">0.5</item>
        <item name="android:backgroundDimEnabled">false</item>
        <item name="android:windowNoTitle">true</item>
        <item name="android:windowBackground">@mipmap/background_1</item>
    </style>

package bjpkten.systemuiflagtest;

import android.app.Dialog;
import android.content.Context;
import android.content.DialogInterface;
import android.view.ViewGroup;
import android.view.WindowManager;

/**
 * Created by Kodulf on 2019/1/15.
 */
public class MyDialog extends Dialog {

    public MyDialog( Context context) {
        super(context);

//        getWindow().requestFeature(Window.FEATURE_NO_TITLE);
//        getWindow().setDimAmount(0.5f);

//        getWindow().setBackgroundDrawable(R.mipmap.background_1);


    }

    public MyDialog( Context context, int themeResId) {
        super(context, themeResId);

    }

    protected MyDialog( Context context, boolean cancelable,  DialogInterface.OnCancelListener cancelListener) {
        super(context, cancelable, cancelListener);
    }


    @Override
    public void show() {
//        getWindow().clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION);
//        getWindow().clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
//        getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION);

//        getWindow().addFlags(WindowManager.LayoutParams.FLAG_LAYOUT_IN_SCREEN);
//        getWindow().getDecorView().setPadding(0,0,0,0);

//        WindowManager.LayoutParams attributes = getWindow().getAttributes();
//        attributes.width= 1000;
//        attributes.height = 2800;

//        this.getWindow().setFlags(WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE, WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE);
        super.show();

        getWindow().setLayout(ViewGroup.LayoutParams.MATCH_PARENT,290);
//        getWindow().getDecorView().setPadding(0,0,0,0);
//        getWindow().addFlags(WindowManager.LayoutParams.FLAG_LAYOUT_IN_SCREEN|WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS|WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION);
        getWindow().addFlags(WindowManager.LayoutParams.FLAG_LAYOUT_IN_SCREEN);
//        getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
//        getWindow().setNavigationBarColor(Color.parseColor("#474747"));
//        getWindow().addFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);
//        this.getWindow().clearFlags(WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE);
//        getWindow().getDecorView().setPadding(300,300,300,300);
//        getWindow().addFlags(WindowManager.LayoutParams.FLAG_FORCE_NOT_FULLSCREEN);
//        getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION);
//        getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);

    }
}

方案二：