Dialog，ActivityDialog自定义位置，大小，动画

activity

Dialog样式的Activity：

首先看自定义的样式

 <style name="MessageTheme">
    <!--设置dialog的背景-->
    <item name="android:windowBackground">@android:color/transparent</item>
    <!--设置Dialog的windowFrame框为无-->
    <item name="android:windowFrame">@null</item>
    <!--设置无标题-->
    <item name="android:windowNoTitle">true</item>
    <!--是否浮现在activity之上-->
    <item name="android:windowIsFloating">true</item>
    <!--是否半透明-->
    <item name="android:windowIsTranslucent">true</item>
    <!--设置窗口内容不覆盖-->
    <item name="android:windowContentOverlay">@null</item>
    <!--设置动画，在这里使用让它继承系统的Animation.Dialog-->
    <item name="android:windowAnimationStyle">@android:style/Animation.Dialog</item>
    <!--背景是否模糊显示-->
    <item name="android:backgroundDimEnabled">true</item>
</style>

Manifest中配置

<activity
    android:name=".activity.MessageAcitivty"
    android:launchMode="singleTop"
    android:screenOrientation="portrait"
    android:theme="@style/MessageTheme" />

<!-- 
    选择性设置   
    android:launchMode="singleTop"
    android:screenOrientation="portrait"
-->

Activity代码

public class MessageAcitivty extends Activity {

    @BindView(R.id.mMsgTitle)
    TextView mTitle;
    @BindView(R.id.mMsgMessage)
    TextView mMessage;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_message_acitivty);
        ButterKnife.bind(this);

        int screenWidth = ScreenUtils.getScreenWidth(this);

        Window window = getWindow();
        window.setGravity(Gravity.CENTER);
        window.getDecorView().setPadding(0, 0, 0, 0);

        WindowManager.LayoutParams lp = window.getAttributes();
        lp.width = (int) (screenWidth * 0.9);
        lp.height = ViewGroup.LayoutParams.WRAP_CONTENT;
        // 这里还可以设置lp.x，lp.y在x轴，y轴上的坐标，只是这个位置是基于Gravity的
        window.setAttributes(lp);

        // 业务
        String msg = getIntent().getStringExtra("msg");
        if (!TextUtils.isEmpty(msg))
            mMessage.setText(msg);
    }

    @Override
    protected void onNewIntent(Intent intent) {
        super.onNewIntent(intent);
        // 业务
        String msg = intent.getStringExtra("msg");
        if (!TextUtils.isEmpty(msg))
            mMessage.setText(msg);
    }
}

layout

这里注意根布局设置的属性，如果是wrap_content显示结果在水平方向上不是完全居中的
有大神知道原因的可以留言与我交流。
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:gravity="center"
    android:orientation="vertical">
    
    ...

</LinearLayout>

普通Dialog设置：

private Dialog dialog;

private void showSearchDialog() {
    if (dialog == null) {

        dialog = new Dialog(this, R.style.style_dialog);
        dialog.setContentView(popupView);
    //  dialog.setCancelable(false);
    //  dialog.setCanceledOnTouchOutside(false);

        Window window = dialog.getWindow();
        window.setGravity(Gravity.TOP);
        window.setWindowAnimations(R.style.popWindowAnimation);
        window.getDecorView().setPadding(0, 0, 0, 0);

        WindowManager.LayoutParams lp = window.getAttributes();
        lp.width = WindowManager.LayoutParams.MATCH_PARENT;
        lp.height = 900;
        lp.y = mToolbar.getHeight();
        window.setAttributes(lp);

        dialog.setOnDismissListener(new DialogInterface.OnDismissListener() {
            @Override
            public void onDismiss(DialogInterface dialog) {
                mView.setVisibility(View.GONE);
            }
        });
        dialog.setOnShowListener(new DialogInterface.OnShowListener() {
            @Override
            public void onShow(DialogInterface dialog) {
                mView.setVisibility(View.VISIBLE);
            }
        });
    }
    dialog.show();
}

dialog动画Style

<style name="popWindowAnimation">
    <item name="android:windowEnterAnimation">@anim/pop_show</item>
    <item name="android:windowExitAnimation">@anim/pop_hide</item>
</style>

pop_show.xml

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
    <!-- <translate
         android:duration="200"
         android:fromXDelta="100%p"
         android:toXDelta="0" />-->
    <!-- <rotate
         android:interpolator="@android:anim/accelerate_decelerate_interpolator"
         android:fromDegrees="-90"
         android:pivotX="100%p"
         android:pivotY="0"
         android:duration="300"
         android:toDegrees="0" />-->
    <scale
        android:duration="300"
        android:fromXScale="0.0"
        android:fromYScale="0.0"
        android:interpolator="@android:anim/decelerate_interpolator"
        android:pivotX="100%p"
        android:pivotY="0"
        android:startOffset="0"
        android:toXScale="1.0"
        android:toYScale="1.0" />
    <alpha
        android:duration="300"
        android:fromAlpha="0.0"
        android:toAlpha="1.0" />
</set>

pop_hide.xml

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">

    <!--<translate
        android:duration="200"
        android:fromXDelta="0"
        android:toXDelta="100%p" />-->
    <scale
        android:duration="300"
        android:fromXScale="1.0"
        android:fromYScale="1.0"
        android:interpolator="@android:anim/decelerate_interpolator"
        android:pivotX="100%p"
        android:pivotY="0"
        android:startOffset="0"
        android:toXScale="0.0"
        android:toYScale="0.0" />

    <alpha
        android:fromAlpha="1.0"
        android:toAlpha="0.0"
        android:duration="300"/>

</set>