Android实现显示在屏幕底部的自定义Dialog

编写一个类BottomFullDialog继承自Dialog，需要重写里面的构造方法和onCreate方法。

public class BottomFullDialog extends Dialog {
    public BottomFullDialog(Context context) {
        super(context);
    }

    public BottomFullDialog(Context context, int themeResId) {
        super(context, themeResId);
        View contentView = getLayoutInflater().inflate(
                R.layout.dialog_bottomfull, null);

        requestWindowFeature(Window.FEATURE_NO_TITLE);
        contentView.setOnTouchListener(new View.OnTouchListener() {
            @Override
            public boolean onTouch(View v, MotionEvent event) {
                BottomFullDialog.this.dismiss();
                return true;
            }
        });
        super.setContentView(contentView);
    }

    protected BottomFullDialog(Context context, boolean cancelable, OnCancelListener cancelListener) {
        super(context, cancelable, cancelListener);
    }

    @SuppressWarnings("deprecation")
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        getWindow().setGravity(Gravity.BOTTOM);//设置显示在底部
        WindowManager windowManager=getWindow().getWindowManager();
        Display display= windowManager.getDefaultDisplay();
        WindowManager.LayoutParams layoutParams=getWindow().getAttributes();
        layoutParams.width=display.getWidth();//设置Dialog的宽度为屏幕宽度
        getWindow().setAttributes(layoutParams);
    }

}

 

dialog_bottomfull.xml布局文件

<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
  android:layout_width="match_parent"
    android:layout_height="match_parent">
<LinearLayout
    android:layout_width="match_parent"
    android:layout_height="200dp" android:background="#ffffff" android:gravity="center">

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" android:text="自定义Dialog里面的内容" android:textColor="#000000" />

</LinearLayout>
</FrameLayout>

 

在styles.xml文件里面新建节点：

 <style name="BottomFullDialog" parent="@style/Theme.AppCompat.Dialog">
        <item name="android:windowBackground">@color/white40</item>
        <item name="android:windowAnimationStyle">@style/dialog_animation</item>
    </style>

    <style name="dialog_animation" parent="android:Animation">
        <item name="@android:windowEnterAnimation">@anim/dialog_enter</item>
        <item name="@android:windowExitAnimation">@anim/dialog_exit</item>
    </style>

 

anim文件夹里新建文件dialog_enter.xml

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
    <translate
        android:duration="200"
        android:toYDelta="0%"
        android:fillAfter="true"
        android:fromYDelta="100%p" />

</set>

 

dialog_exit.xml文件

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
    <translate
        android:duration="200"
        android:fromYDelta="0%"
        android:fillAfter="true"
        android:toYDelta="100%p" />
</set>

 

 

调用方法：

  BottomFullDialog bottomFullDialog=new BottomFullDialog(this,R.style.BottomFullDialog);
                bottomFullDialog.setCancelable(true);
                bottomFullDialog.setCanceledOnTouchOutside(true);
                bottomFullDialog.show();