android 自定义对话框
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今天,简单讲讲如何使用自定义的对话框。
在网上看到一个自定义的对话框,感觉很好。
废话不说先上图片:
实现机制
1.先自定义一个弹出框的样式
2.自己实现CustomDialog类,继承自Dialog,实现里面方法,在里面加载自定义样式的弹出框;
3.使用时,与使用Dialog一样
具体代码
dialog_normal_layout.xml样式文件
<?xml version="1.0" encoding="utf-8"?><FrameLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:clickable="true" android:orientation="vertical" android:padding="20.0dip" > <LinearLayout android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_gravity="center" android:background="@drawable/bg_bombbox" android:orientation="vertical" > <TextView android:id="@+id/title" style="@style/text_18_ffffff" android:layout_width="fill_parent" android:layout_height="40.0dip" android:gravity="center" android:text="@string/title_alert" android:visibility="visible" /> <LinearLayout android:id="@+id/content" android:layout_width="fill_parent" android:layout_height="wrap_content" android:gravity="center" > <TextView android:id="@+id/message" style="@style/text_16_666666" android:layout_width="fill_parent" android:layout_height="wrap_content" android:gravity="left|center" android:lineSpacingMultiplier="1.5" android:minHeight="120.0dip" android:paddingBottom="15.0dip" android:paddingLeft="20.0dip" android:paddingRight="20.0dip" android:paddingTop="15.0dip" /> </LinearLayout> <View android:layout_width="fill_parent" android:layout_height="1.0px" android:background="#ffd0d0d0" /> <LinearLayout android:layout_width="fill_parent" android:layout_height="60.0dip" android:layout_gravity="bottom" android:background="@drawable/dialog_bottom_bg" android:gravity="center" android:orientation="horizontal" > <Button android:id="@+id/positiveButton" style="@style/text_15_ffffff_sdw" android:layout_width="114.0dip" android:layout_height="40.0dip" android:background="@drawable/btn_ok_selector" android:gravity="center" android:text="@string/ok" /> <Button android:id="@+id/negativeButton" style="@style/text_15_666666_sdw" android:layout_width="114.0dip" android:layout_height="40.0dip" android:layout_marginLeft="20.0dip" android:background="@drawable/btn_cancel_selector" android:gravity="center" android:text="@string/cancel" /> </LinearLayout> </LinearLayout></FrameLayout>
其中引用的样式文件styles.xml
<?xml version="1.0" encoding="utf-8"?><resources xmlns:android="http://schemas.android.com/apk/res/android"> <style name="AppBaseTheme" parent="android:Theme.Light"></style> <style name="AppTheme" parent="AppBaseTheme"></style> <style name="text_18_ffffff"> <item name="android:textSize">18.0dip</item> <item name="android:textColor">#ffffffff</item> </style> <style name="text_16_666666"> <item name="android:textSize">16.0dip</item> <item name="android:textColor">#ff666666</item> </style> <style name="sdw_white"> <item name="android:shadowColor">#7fffffff</item> <item name="android:shadowDx">0.0</item> <item name="android:shadowDy">0.65</item> <item name="android:shadowRadius">1.0</item> </style> <style name="sdw_79351b"> <item name="android:shadowColor">#ff79351b</item> <item name="android:shadowDx">0.0</item> <item name="android:shadowDy">1.0</item> <item name="android:shadowRadius">1.0</item> </style> <style name="text_15_ffffff_sdw" parent="@style/sdw_79351b"> <item name="android:textSize">15.0dip</item> <item name="android:textColor">#ffffffff</item> </style> <style name="text_15_666666_sdw" parent="@style/sdw_white"> <item name="android:textSize">15.0dip</item> <item name="android:textColor">#ff666666</item> </style> <style name="Dialog" parent="android:style/Theme.Dialog"> <item name="android:background">#00000000</item> <item name="android:windowBackground">@android:color/transparent</item> <item name="android:windowNoTitle">true</item> <item name="android:windowIsFloating">true</item> </style></resources>
自定义Dialog的实现类CustomDialog
package com.dyr.custom;import android.app.Dialog;import android.content.Context;import android.content.DialogInterface;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup.LayoutParams;import android.widget.Button;import android.widget.LinearLayout;import android.widget.TextView;import com.dyr.view.R;public class CustomDialog extends Dialog {public CustomDialog(Context context) {super(context);}public CustomDialog(Context context, int theme) {super(context, theme);}public static class Builder {private Context context;private String title;private String message;private String positiveButtonText;private String negativeButtonText;private View contentView;private DialogInterface.OnClickListener positiveButtonClickListener;private DialogInterface.OnClickListener negativeButtonClickListener;public Builder(Context context) {this.context = context;}public Builder setMessage(String message) {this.message = message;return this;}/** * Set the Dialog message from resource * * @param title * @return */public Builder setMessage(int message) {this.message = (String) context.getText(message);return this;}/** * Set the Dialog title from resource * * @param title * @return */public Builder setTitle(int title) {this.title = (String) context.getText(title);return this;}/** * Set the Dialog title from String * * @param title * @return */public Builder setTitle(String title) {this.title = title;return this;}public Builder setContentView(View v) {this.contentView = v;return this;}/** * Set the positive button resource and it's listener * * @param positiveButtonText * @return */public Builder setPositiveButton(int positiveButtonText,DialogInterface.OnClickListener listener) {this.positiveButtonText = (String) context.getText(positiveButtonText);this.positiveButtonClickListener = listener;return this;}public Builder setPositiveButton(String positiveButtonText,DialogInterface.OnClickListener listener) {this.positiveButtonText = positiveButtonText;this.positiveButtonClickListener = listener;return this;}public Builder setNegativeButton(int negativeButtonText,DialogInterface.OnClickListener listener) {this.negativeButtonText = (String) context.getText(negativeButtonText);this.negativeButtonClickListener = listener;return this;}public Builder setNegativeButton(String negativeButtonText,DialogInterface.OnClickListener listener) {this.negativeButtonText = negativeButtonText;this.negativeButtonClickListener = listener;return this;}public CustomDialog create() {LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);// instantiate the dialog with the custom Themefinal CustomDialog dialog = new CustomDialog(context,R.style.Dialog);View layout = inflater.inflate(R.layout.dialog_normal_layout, null);dialog.addContentView(layout, new LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT));// set the dialog title((TextView) layout.findViewById(R.id.title)).setText(title);// set the confirm buttonif (positiveButtonText != null) {((Button) layout.findViewById(R.id.positiveButton)).setText(positiveButtonText);if (positiveButtonClickListener != null) {((Button) layout.findViewById(R.id.positiveButton)).setOnClickListener(new View.OnClickListener() {public void onClick(View v) {positiveButtonClickListener.onClick(dialog,DialogInterface.BUTTON_POSITIVE);}});}} else {// if no confirm button just set the visibility to GONElayout.findViewById(R.id.positiveButton).setVisibility(View.GONE);}// set the cancel buttonif (negativeButtonText != null) {((Button) layout.findViewById(R.id.negativeButton)).setText(negativeButtonText);if (negativeButtonClickListener != null) {((Button) layout.findViewById(R.id.negativeButton)).setOnClickListener(new View.OnClickListener() {public void onClick(View v) {negativeButtonClickListener.onClick(dialog,DialogInterface.BUTTON_NEGATIVE);}});}} else {// if no confirm button just set the visibility to GONElayout.findViewById(R.id.negativeButton).setVisibility(View.GONE);}// set the content messageif (message != null) {((TextView) layout.findViewById(R.id.message)).setText(message);} else if (contentView != null) {// if no message set// add the contentView to the dialog body((LinearLayout) layout.findViewById(R.id.content)).removeAllViews();((LinearLayout) layout.findViewById(R.id.content)).addView(contentView, new LayoutParams(LayoutParams.FILL_PARENT,LayoutParams.FILL_PARENT));}dialog.setContentView(layout);return dialog;}}}
使用代码
CustomDialog.Builder builder = new CustomDialog.Builder(this);builder.setMessage("这个就是自定义的提示框");builder.setTitle("提示");builder.setPositiveButton("确定", new DialogInterface.OnClickListener() {public void onClick(DialogInterface dialog, int which) {dialog.dismiss();//设置你的操作事项}});builder.setNegativeButton("取消",new android.content.DialogInterface.OnClickListener() {public void onClick(DialogInterface dialog, int which) {dialog.dismiss();}});builder.create().show();
简单总结一下,其实只是自己定义一个布局,然后重写一个类继承Dialog,然后根据自己的布局设置显示的内容,设置内容必须返回Builder这个内部类 ,比如
public Builder setTitle(String title) { this.title = title; return this; }
然后重写create()设置监听,监听使用接口回调,用户自己设计点击后的处理事件,然后自己加载自己设计的布局,
LayoutInflater inflater = (LayoutInflater) context .getSystemService(Context.LAYOUT_INFLATER_SERVICE); final CustomDialog dialog = new CustomDialog(context,R.style.Dialog); View layout = inflater.inflate(R.layout.dialog_normal_layout, null); dialog.addContentView(layout, new LayoutParams( LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT));
最后,直接dialog.setContentView(layout); 使用布局。
android 自定义对话框就讲完了。
就这么简单。
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