Android 用PopupWindow实现弹出警告框的复用类

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Android 用PopupWindow实现弹出警告框的复用类

#Android 用PopupWindow实现弹出警告框的复用类| 来源: 网络整理| 查看: 265

转载请标明出处：http://blog.csdn.net/wangtaocsdn/article/details/71330670

Android开发中相信下图所示界面大家都不陌生，该种弹出框的使用频率也是极高的，所以我专门谢了个类用于方便的弹出该界面。并把确定或取消后的逻辑通过抽象方法的方式让用户自己实现，大大提高了开发效率。下面是该类：

这里写图片描述

package com.***.popupwindow;import ******;public abstract class MyPopupWindow { private PopupWindow popupWindow; private Activity context; private String content; private String positiveWord = "确定"; private String negativeWord = "取消"; /** * 构造函数 * * @param context */ public MyPopupWindow(Activity context) { this.context = context; } /** * 显示警示框 */ public void show() { View popView = View.inflate(context, R.layout.popup, null); popupWindow = new PopupWindow(context); popupWindow.setHeight(400); popupWindow.setWidth(700); popupWindow.setOutsideTouchable(true); popupWindow.setFocusable(true); popupWindow.setContentView(popView); popupWindow.showAtLocation(context.getWindow().getDecorView(), Gravity.CENTER, 0, 0); TextView tv_pop_text = (TextView) popView.findViewById(R.id.tv_pop_text); tv_pop_text.setText(content); Button bt_pop_sure = (Button) popView.findViewById(R.id.bt_pop_sure); bt_pop_sure.setText(positiveWord); bt_pop_sure.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { sureClick(); } }); Button bt_pop_cancel = (Button) popView.findViewById(R.id.bt_pop_cancel); bt_pop_cancel.setText(negativeWord); bt_pop_cancel.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { cancelClick(); } }); } /** * 确定键按下后执行 */ public abstract void sureClick(); /** * 取消键按下后执行 */ public abstract void cancelClick(); /** * 为警示设置警示内容 * * @param content */ public void setContent(String content) { this.content = content; } /** * 设置确定键文字 * * @param positiveWord */ public void setPositiveWord(String positiveWord) { this.positiveWord = positiveWord; } /** * 设置取消键文字 * * @param negativeWord */ public void setNegativeWord(String negativeWord) { this.negativeWord = negativeWord; } /** * 手动取消警示框 */ public void dismiss() { popupWindow.dismiss(); }}

其中弹出框用到的布局popup.xml代码如下：

下面简单的使用一下：在界面放一个按钮，按钮点击后弹出警告框。代码如下：

package com.toprs.popupwindow;import android.graphics.Color;import android.graphics.drawable.ColorDrawable;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.util.AttributeSet;import android.view.Gravity;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;import android.widget.ArrayAdapter;import android.widget.Button;import android.widget.ListView;import android.widget.PopupWindow;import android.widget.SeekBar;import android.widget.Toast;public class MainActivity extends AppCompatActivity { private PopupWindow popupWindow; private Button button; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); button = (Button) findViewById(R.id.button); button.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { MyPopupWindow myPopupWindow = new MyPopupWindow(MainActivity.this) { @Override public void sureClick() { Toast.makeText(MainActivity.this, "确定", Toast.LENGTH_SHORT).show(); } @Override public void cancelClick() { Toast.makeText(MainActivity.this, "取消", Toast.LENGTH_SHORT).show(); } }; myPopupWindow.setContent("确定退出？"); myPopupWindow.show(); } }); }}

即如下效果：

这里写图片描述

So，以后使用只需要简单调用几句代码就好了！

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Android 用PopupWindow实现弹出警告框的复用类

Android 用PopupWindow实现弹出警告框的复用类

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