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  • 练习题2对话框

    <?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: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="com.hanqi.testapp2.Xiti2duihuakuangActivity"
        android:orientation="vertical">
    
        <Button
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text="一般对话框"
            android:onClick="sb1_OnClick"/>
    
    </LinearLayout>
    package com.hanqi.testapp2;
    
    import android.app.AlertDialog;
    import android.content.DialogInterface;
    import android.support.v7.app.AppCompatActivity;
    import android.os.Bundle;
    import android.view.View;
    import android.widget.Toast;
    
    public class Xiti2duihuakuangActivity extends AppCompatActivity {
    
        @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_xiti2duihuakuang);
        }
    
        public void sb1_OnClick(View v)
        {
            AlertDialog alertDialog=new AlertDialog.Builder(this)
                    .setTitle("提示")
                    .setMessage("确定要删除吗?要删除,请点击“是”")
                    .setPositiveButton("是", new DialogInterface.OnClickListener() {
                        @Override
                        public void onClick(DialogInterface dialog, int which) {
    
                            Toast.makeText(Xiti2duihuakuangActivity.this, "执行删除,which="+which, Toast.LENGTH_SHORT).show();
                        }
                    })
                    .setNegativeButton("否", new DialogInterface.OnClickListener() {
                        @Override
                        public void onClick(DialogInterface dialog, int which) {
    
                            Toast.makeText(Xiti2duihuakuangActivity.this, "取消删除,which="+which, Toast.LENGTH_SHORT).show();
                        }
                    })
                    .setCancelable(false)
                    .show();
        }
    }

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  • 原文地址:https://www.cnblogs.com/cycanfly/p/5491075.html
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