android AlertDialog多种使用方法详解

当你的应用需要显示一个进度条或需要用户对信息进行确认时，可以使用alertDialog来完成。下面来介绍常用的四种AlertDialog。

1、普通对话框

package com.example.yk.dialogtest; 
import android.content.DialogInterface; 
import android.support.v7.app.AlertDialog; 
import android.support.v7.app.AppCompatActivity; 
import android.os.Bundle; 
import android.widget.Toast; 
 
public class GeneralDialogActivity extends AppCompatActivity { 
 @Override 
 protected void onCreate(Bundle savedInstanceState) { 
  super.onCreate(savedInstanceState); 
  setContentView(R.layout.activity_general_dialog); 
  AlertDialog.Builder alertDialog = new AlertDialog.Builder(this) 
    .setTitle("操作title")//设置title 
    .setMessage("操作message")//设置要显示的message 
    .setCancelable(false)//表示点击dialog其它部分不能取消(除了“取消”，“确定”按钮) 
    .setPositiveButton("确定", new 
      DialogInterface.OnClickListener() { 
   @Override 
   public void onClick(DialogInterface dialogInterface, int i) { 
    Toast.makeText(GeneralDialogActivity.this, "点击了确定", Toast.LENGTH_SHORT).show(); 
   } 
  }).setNegativeButton("取消", new DialogInterface.OnClickListener() { 
   @Override 
   public void onClick(DialogInterface dialogInterface, int i) { 
//    dialogInterface.dismiss(); 
   } 
  }); 
  alertDialog.show();//别忘了show 
 } 
} 

2、单选对话框

package com.example.yk.dialogtest; 
import android.content.DialogInterface; 
import android.support.v7.app.AlertDialog; 
import android.support.v7.app.AppCompatActivity; 
import android.os.Bundle; 
import android.widget.Toast; 
 
public class SingleDialogActivity extends AppCompatActivity { 
 private String[] items={"java","php","c"}; 
 @Override 
 protected void onCreate(Bundle savedInstanceState) { 
  super.onCreate(savedInstanceState); 
  setContentView(R.layout.activity_single_dialog); 
  AlertDialog.Builder alertDialog = new AlertDialog.Builder(this) 
    .setTitle("提示title") 
//    .setMessage("提示message")//在需要设置单选对话框的情况下是不能设置message的，否则单选对话框内容会失效 
    .setSingleChoiceItems(items, -1, new DialogInterface.OnClickListener() {//checkedItem=-1表示默认不选中 
     @Override 
     public void onClick(DialogInterface dialogInterface, int i) { 
      Toast.makeText(SingleDialogActivity.this, "选中了"+items[i], Toast.LENGTH_SHORT).show(); 
     } 
    }).setPositiveButton("确定", new DialogInterface.OnClickListener() { 
     @Override 
     public void onClick(DialogInterface dialogInterface, int i) { 
     } 
    }); 
   alertDialog.show(); 
 } 
} 

3、多选对话框

package com.example.yk.dialogtest; 
import android.content.DialogInterface; 
import android.support.v7.app.AlertDialog; 
import android.support.v7.app.AppCompatActivity; 
import android.os.Bundle; 
import android.widget.Toast; 
 
public class MultiChoiceDialogActivity extends AppCompatActivity { 
 private String[] items={"java","php","c"}; 
 @Override 
 protected void onCreate(Bundle savedInstanceState) { 
  super.onCreate(savedInstanceState); 
  setContentView(R.layout.activity_multi_choice_dialog); 
  AlertDialog.Builder alertDialog = new AlertDialog.Builder(this) 
    .setTitle("提示title") 
    .setCancelable(false) 
    .setMultiChoiceItems(items, new boolean[]{false, false, false}, new DialogInterface.OnMultiChoiceClickListener() { 
     @Override 
     public void onClick(DialogInterface dialogInterface, int i, boolean b) { 
      if(b){ 
       Toast.makeText(MultiChoiceDialogActivity.this, "选中了"+items[i], Toast.LENGTH_SHORT) 
         .show(); 
      } 
     } 
    }) 
    .setPositiveButton("确定", new DialogInterface.OnClickListener() { 
     @Override 
     public void onClick(DialogInterface dialogInterface, int i) { 
     } 
    }); 
  alertDialog.show(); 
 } 
} 

4、进度条对话框

package com.example.yk.dialogtest; 
import android.app.ProgressDialog; 
import android.os.Handler; 
import android.os.Message; 
import android.support.v7.app.AppCompatActivity; 
import android.os.Bundle; 
 
public class ProgressDialogActivity extends AppCompatActivity { 
 private ProgressDialog progressDialog; 
 @Override 
 protected void onCreate(Bundle savedInstanceState) { 
  super.onCreate(savedInstanceState); 
  setContentView(R.layout.activity_progress_dialog); 
  progressDialog = new ProgressDialog(this); 
  progressDialog.setTitle("提示title"); 
  progressDialog.setCancelable(true); 
//  progressDialog.setProgressStyle(ProgressDialog.STYLE_SPINNER);//旋转进度条，默认风格 
  progressDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);//横向进度条 
  progressDialog.show(); 
 } 
} 

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