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;  /**  * AlertDialog普通對話框  */ 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")//設置title     .setMessage("操作message")//設置要顯示的message     .setCancelable(false)//表示點擊dialog其它部分不能取消(除了“取消”，“確定”按鈕)     .setPositiveButton("確定", new       DialogInterface.OnClickListener() {    @Override    public void onClick(DialogInterface dialogInterface, int i) {     Toast.makeText(GeneralDialogActivity.this, "點擊了確定", Toast.LENGTH_SHORT).show();     }   }).setNegativeButton("取消", new DialogInterface.OnClickListener() {    @Override    public void onClick(DialogInterface dialogInterface, int i) { //    dialogInterface.dismiss();    }   });   alertDialog.show();//別忘了show  } } 

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;  /**  * 單選對話框  */ 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")//在需要設置單選對話框的情況下是不能設置message的，否則單選對話框內容會失效     .setSingleChoiceItems(items, -1, new DialogInterface.OnClickListener() {//checkedItem=-1表示默認不選中      @Override      public void onClick(DialogInterface dialogInterface, int i) {       Toast.makeText(SingleDialogActivity.this, "選中了"+items[i], Toast.LENGTH_SHORT).show();      }     }).setPositiveButton("確定", new DialogInterface.OnClickListener() {      @Override      public void onClick(DialogInterface dialogInterface, int i) {       }     });    alertDialog.show();  } } 

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;  /**  * 多選對話框  */ 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, "選中了"+items[i], Toast.LENGTH_SHORT)          .show();       }       }     })     .setPositiveButton("確定", new DialogInterface.OnClickListener() {      @Override      public void onClick(DialogInterface dialogInterface, int i) {       }     });   alertDialog.show();  } } 

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;  /**  * 進度條對話框  */ 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);//旋轉進度條，默認風格   progressDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);//橫向進度條   progressDialog.show();   } }