Dialog底部弹出效果

dialog.show();

Window window = dialog.getWindow();
window.setWindowAnimations(R.style.take_phtoto);//动画
window.setBackgroundDrawableResource(android.R.color.transparent);//透明背景
WindowManager.LayoutParams layoutParams = window.getAttributes();
Display display = window.getWindowManager().getDefaultDisplay();
layoutParams.width = display.getWidth() * 2 / 3;//屏幕2/3
layoutParams.gravity = Gravity.BOTTOM;//显示在底部
if (layoutParams.gravity == Gravity.BOTTOM) {
layoutParams.y = 0;
}
window.setAttributes(layoutParams);

R.style.take_phtoto

<style name="take_phtoto" parent="android:Animation">
<item name="android:windowEnterAnimation">@anim/pop_enter_anim</item>
<item name="android:windowExitAnimation">@anim/pop_exit_anim</item>
</style>

pop_enter_anim

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

pop_exit_anim

<?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="50%p" />
<alpha
android:duration="300"
android:fromAlpha="1.0"
android:toAlpha="0.0" />
</set>