模态对话框 和 非模态对话框
16lz
2021-01-26
* 简介:在项目开发时，经常会用到非模态对话框；虽然，可以用Popupwindow实现非模态对话框，但Popupwindow覆盖的部分不容易获取事件，且混合使用比较麻烦。 下面就用Android自身的Dialog来实现模态和非模态对话框，以及与界面绑定的对话框。*
- 素材：
- 布局文件wait_layer.xml
<?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" android:gravity="center"> <RelativeLayout android:layout_width="140dp" android:layout_height="140dp" android:background="@drawable/wait_layer_back" > <RelativeLayout android:layout_width="match_parent" android:layout_height="match_parent" android:gravity="center"> <FrameLayout android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_centerHorizontal="true" android:id="@+id/frame" > <ImageView android:layout_width="100" android:layout_height="100" android:background="@drawable/ym_progress" android:id="@+id/progress" /> <ImageView android:layout_width="100" android:layout_height="100" android:background="@drawable/ym_progress_icon" /> FrameLayout> <TextView android:id="@+id/tipText" android:layout_width="match_parent" android:layout_height="wrap_content" android:text="正在加载..." android:textSize="16sp" android:gravity="center" android:textColor="#007E95" android:layout_below="@+id/frame" android:layout_marginTop="5dp"/> RelativeLayout> RelativeLayout>LinearLayout>- anim文件loading_animation.xml
<?xml version="1.0" encoding="utf-8"?><set android:shareInterpolator="false" xmlns:android="http://schemas.android.com/apk/res/android"> <rotate android:interpolator="@android:anim/linear_interpolator" android:pivotX="50%" android:pivotY="50%" android:fromDegrees="0" android:toDegrees="+360" android:duration="1000" android:startOffset="-1" android:repeatMode="restart" android:repeatCount="-1" />set> 4.样式
<?xml version="1.0" encoding="utf-8"?><resources> <style name="loading_dialog" parent="android:style/Theme.Dialog"> <item name="android:windowFrame">@null - "android:windowNoTitle"
>true - "android:windowBackground"
>@android:color/transparent - "android:windowIsFloating">true
- "android:windowContentOverlay">@null
style> <style name="loading_dialog_dim" parent="loading_dialog"> <item name="android:backgroundDimEnabled">falseitem> style>resources>5.主要代码
package com.single.oto.utils;import android.app.Activity;import android.app.Dialog;import android.content.Context;import android.util.Log;import android.view.*;import android.view.animation.Animation;import android.view.animation.AnimationUtils;import android.widget.*;import com.single.oto.R;import com.single.oto.activity.BaseActivity;public class WaitLayer { private TextView tipTextView; private Dialog loadingDialog; private Animation hyperspaceJumpAnimation; private ImageView spaceshipImage; private DialogType dialogType = DialogType.MODALESS; private ViewGroup rootView; private View view; public WaitLayer(Context context,DialogType dialogType) { this.dialogType = dialogType; creatDialog(context); } private void creatDialog(Context context) { if(view == null){ view = LayoutInflater.from(context).inflate(R.layout.wait_layer,null); } hyperspaceJumpAnimation = AnimationUtils.loadAnimation(context, R.anim.loading_animation); // 使用ImageView显示动画 spaceshipImage = (ImageView)view.findViewById(R.id.progress); tipTextView = (TextView)view.findViewById(R.id.tipText); spaceshipImage.startAnimation(hyperspaceJumpAnimation); if(dialogType == DialogType.NOT_NOMAL){//与界面绑定的对话框 if(context instanceof Activity){ rootView = (ViewGroup)((Activity)context).findViewById(android.R.id.content); }else { Log.e("waitLayer:","params context is not Activity"); } }else { if (dialogType == DialogType.MODAL){//模态 loadingDialog = new Dialog(context, R.style.loading_dialog_dim);// 创建自定义样式dialog Window window = loadingDialog.getWindow(); WindowManager.LayoutParams wl = window.getAttributes(); wl.dimAmount = 0.0f; // wl.alpha = 0f; //这句设置了对话框的透明度 wl.flags = wl.flags | WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL; wl.flags = wl.flags | WindowManager.LayoutParams.FLAG_DIM_BEHIND; window.setAttributes(wl); }else {//非模态 loadingDialog = new Dialog(context, R.style.loading_dialog);// 创建自定义样式dialog loadingDialog.setCancelable(false); } loadingDialog.addContentView(view, new FrameLayout.LayoutParams(FrameLayout.LayoutParams.MATCH_PARENT, FrameLayout.LayoutParams.MATCH_PARENT)); } } /** * 显示等待层 * */ public void show() { show(null); } /** * 显示等待层 * * @param msg */ public void show(String msg) { if(dialogType == DialogType.NOT_NOMAL){ if(rootView.getChildAt(rootView.getChildCount() - 1) != view){ spaceshipImage.startAnimation(hyperspaceJumpAnimation); rootView.addView(view, new FrameLayout.LayoutParams(FrameLayout.LayoutParams.MATCH_PARENT, FrameLayout.LayoutParams.MATCH_PARENT)); } }else { if (loadingDialog.getWindow() != null && !loadingDialog.getWindow().isActive()) { if (msg != null) { tipTextView.setText(msg);// 设置加载信息,否则加载默认值 }else { tipTextView.setText(""); } if(!loadingDialog.isShowing()){ spaceshipImage.startAnimation(hyperspaceJumpAnimation); loadingDialog.show(); } } } } /** * 关闭等待层 */ public void dismiss() { if(dialogType != DialogType.NOT_NOMAL){ if (loadingDialog != null && loadingDialog.isShowing()) { loadingDialog.dismiss(); } }else { if(rootView != null && view != null){ rootView.removeView(view); } } hyperspaceJumpAnimation.cancel(); } public enum DialogType{ MODAL,//模态 MODALESS,//非模态 NOT_NOMAL;//与界面绑定的对话框 }}小结:在创建对话框是根据enum DialogType的值来创建您所需要的对话框。
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