Android 中从屏幕左下角弹出Dialog动画效果的实现代码
MainActivity代码:
import android.app.Dialog;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.Window;
import android.view.WindowManager;
public class MainActivity extends AppCompatActivity {
private View inflate;
private Dialog dialog;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
public void click(View view) {
dialog = new Dialog(this,R.style.ActionDialogStyle);
//填充对话框的布局
inflate = LayoutInflater.from(this).inflate(R.layout.item_dialog, null);
//初始化控件
//将布局设置给Dialog
dialog.setContentView(inflate);
//获取当前Activity所在的窗体
Window dialogWindow = dialog.getWindow();
//设置Dialog从窗体底部弹出
dialogWindow.setGravity( Gravity.BOTTOM);
//获得窗体的属性
WindowManager.LayoutParams lp = dialogWindow.getAttributes();
lp.y = 20;//设置Dialog距离底部的距离
lp.width = WindowManager.LayoutParams.MATCH_PARENT;
// 将属性设置给窗体
dialogWindow.setAttributes(lp);
dialog.show();//显示对话框
}
}
主界面的布局:
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:id="@+id/activity_main" android:orientation="vertical" android:layout_width="match_parent" android:layout_height="match_parent" android:paddingBottom="@dimen/activity_vertical_margin" android:paddingLeft="@dimen/activity_horizontal_margin" android:paddingRight="@dimen/activity_horizontal_margin" android:paddingTop="@dimen/activity_vertical_margin" tools:context="ucai.cn.dialoganimator.MainActivity"> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Hello World!" android:onClick="click"/> </LinearLayout>
Dialog布局:
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="match_parent" android:layout_height="match_parent"> <ImageView android:layout_width="match_parent" android:layout_height="wrap_content" android:src="@drawable/hani_gift_1" android:layout_gravity="center"/> </LinearLayout>
styles代码:
<style name="ActionDialogStyle" parent="@android:style/Theme.Dialog">
<!-- 背景透明 --> <item name="android:windowBackground">@android:color/transparent</item> <item name="android:windowContentOverlay">@null</item> <!-- 浮于Activity之上 --> <item name="android:windowIsFloating">true</item> <!-- 边框 --> <item name="android:windowFrame">@null</item> <!-- Dialog以外的区域模糊效果 --> <item name="android:backgroundDimEnabled">true</item> <!-- 无标题 --> <item name="android:windowNoTitle">true</item> <!-- 半透明 --> <item name="android:windowIsTranslucent">true</item> <!-- Dialog进入及退出动画 --> <item name="android:windowAnimationStyle">@style/ActionSheetDialogAnimation</item> </style> <!-- ActionSheet进出动画 --> <style name="ActionSheetDialogAnimation" parent="@android:style/Animation.Dialog"> <item name="android:windowEnterAnimation">@anim/actionsheet_dialog_in</item> <item name="android:windowExitAnimation">@anim/actionsheet_dialog_out</item> </style>
进入动画(左下角开始放大):
<?xml version="1.0" encoding="utf-8"?> <scale xmlns:android="http://schemas.android.com/apk/res/android" android:duration="1000" android:fromXScale="0" android:toXScale="100%" android:fromYScale="0" android:toYScale="100%" android:pivotX="0%" android:pivotY="100%" />
退出动画(向下移动):
<?xml version="1.0" encoding="utf-8"?> <translate xmlns:android="http://schemas.android.com/apk/res/android" android:duration="200" android:fromYDelta="0" android:toYDelta="100%" />
以上所述是小编给大家介绍的Android 中从屏幕左下角弹出Dialog动画效果的实现代码,希望对大家有所帮助,如果大家有任何疑问请给我留言,小编会及时回复大家的。在此也非常感谢大家对我们网站的支持!
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