创建一个从底部显示的对话框
if (dialog == null) { dialog = new Dialog(context, R.style.theme_from_bottom); View view = View.inflate(context, R.layout.udialog, null); ImageView closeView = view.findViewById(R.id.user_contract_close_view); Button button = view.findViewById(R.id.user_contract_im_view); dialog.setContentView(view); dialog.setCancelable(false); //设置自适应的方法: WindowManager.LayoutParams dialogParams = contactDialog.getWindow().getAttributes(); dialogParams.width = WindowManager.LayoutParams.MATCH_PARENT; dialogParams.height = WindowManager.LayoutParams.WRAP_CONTENT; //设置底部显示 dialogParams.gravity = Gravity.BOTTOM; contactDialog.getWindow().setAttributes(dialogParams); //设置窗口大小的方法: int with = (int) (context.getResources().getDisplayMetrics().widthPixels * 0.6) int height = (int) (context.getResources().getDisplayMetrics().heightPixels * 0.4); //对话框重置属性 contactDialog.getWindow().setAttributes(dialogParams); }
xml 文件
<style name="theme_from_bottom" parent="@android:style/Theme.Dialog"> <item name="android:windowFrame">@null</item> <item name="android:windowNoTitle">true</item> <item name="android:windowIsFloating">true</item> <item name="android:windowIsTranslucent">true</item> <item name="android:windowAnimationStyle">@style/dialog_bottom</item> <item name="android:backgroundDimEnabled">true</item> <item name="android:windowBackground">@android:color/transparent</item> </style> <style name="dialog_bottom" parent="@android:style/Animation.Dialog"> <item name="android:windowFrame">@null</item> <item name="android:windowIsFloating">true</item> <item name="android:windowIsTranslucent">false</item> <item name="android:windowNoTitle">true</item> <item name="android:backgroundDimEnabled">false</item> <item name="android:windowEnterAnimation">@anim/dialog_bottom_in</item> <item name="android:windowExitAnimation">@anim/dialog_bottom_out</item> </style>
动画
dialog_bottom_in
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android" >
<translate
android:duration="300"
android:fromYDelta="100%p"
android:toYDelta="0"
/>
<alpha
android:interpolator="@android:anim/accelerate_interpolator"
android:fromAlpha="0.0" android:toAlpha="1.0"
android:duration="300" />
</set>
dialog_bottom_out
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android" >
<translate
android:duration="300"
android:fromYDelta="0"
android:toYDelta="100%p" />
<alpha
android:interpolator="@android:anim/accelerate_interpolator"
android:fromAlpha="1.0" android:toAlpha="0.0"
android:duration="300" />
</set>