Dialog 设置背景布遮挡navigationbar 遮挡statusbar

Done!!!!!! 一定要记住style 里面要有layout_gravity 为bottom的属性，不然就不对了。

<style name="AppThemeDialogFull" parent="ThemeOverlay.AppCompat.Dialog.Alert">
        <!-- Customize your theme here. -->
        <item name="android:backgroundDimEnabled">false</item>
        <item name="android:layout_gravity">bottom</item>
        <item name="android:windowBackground">@mipmap/background_1</item>
    </style>

1: 做一个只遮挡navigationbar的背景

2: 在style 里面设置windowbackground这个背景，记住一定是这个windowbackground 而不是background，一定要记住style 里面要有layout_gravity 为bottom的属性，不然就不对了。

3: getwindow的时候设置高度为整个屏幕的高度，例如这里就是320的高度，如果高度改为了MatchParent ，就会报错。

4: 

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="290dp"
android:orientation="vertical">

<Button
android:layout_width="match_parent"
android:layout_height="20dp"
android:text="click1"/>

</LinearLayout>

<style name="AppThemeDialogFull" 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:layout_gravity">bottom</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.Gravity;
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,320);
        getWindow().setGravity(Gravity.BOTTOM);
//        getWindow().setGravity(Gravity.TOP);
//        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);

    }
}