8种android 对话框（Dialog）使用方法详解

public class MainActivity extends Activity {   @Override  protected void onCreate(Bundle savedInstanceState) {    super.onCreate(savedInstanceState);    setContentView(R.layout.activity_main);    Button buttonNormal = (Button) findViewById(R.id.button_normal);    buttonNormal.setOnClickListener(new View.OnClickListener() {      @Override      public void onClick(View v) {        showNormalDialog();      }    });  }     private void showNormalDialog(){    /* @setIcon 设置对话框图标     * @setTitle 设置对话框标题     * @setMessage 设置对话框消息提示     * setXXX方法返回Dialog对象，因此可以链式设置属性     */    final AlertDialog.Builder normalDialog =       new AlertDialog.Builder(MainActivity.this);    normalDialog.setIcon(R.drawable.icon_dialog);    normalDialog.setTitle("我是一个普通Dialog")    normalDialog.setMessage("你要点击哪一个按钮呢?");    normalDialog.setPositiveButton("确定",       new DialogInterface.OnClickListener() {      @Override      public void onClick(DialogInterface dialog, int which) {        //...To-do      }    });    normalDialog.setNegativeButton("关闭",       new DialogInterface.OnClickListener() {      @Override      public void onClick(DialogInterface dialog, int which) {        //...To-do      }    });    // 显示    normalDialog.show();  }}

/* @setNeutralButton 设置中间的按钮 * 若只需一个按钮，仅设置 setPositiveButton 即可 */private void showMultiBtnDialog(){  AlertDialog.Builder normalDialog =     new AlertDialog.Builder(MainActivity.this);  normalDialog.setIcon(R.drawable.icon_dialog);  normalDialog.setTitle("我是一个普通Dialog").setMessage("你要点击哪一个按钮呢?");  normalDialog.setPositiveButton("按钮1",     new DialogInterface.OnClickListener() {    @Override    public void onClick(DialogInterface dialog, int which) {      // ...To-do    }  });  normalDialog.setNeutralButton("按钮2",     new DialogInterface.OnClickListener() {    @Override    public void onClick(DialogInterface dialog, int which) {      // ...To-do    }  });  normalDialog.setNegativeButton("按钮3", new DialogInterface.OnClickListener() {    @Override    public void onClick(DialogInterface dialog, int which) {      // ...To-do    }  });  // 创建实例并显示  normalDialog.show();}

private void showListDialog() {  final String[] items = { "我是1","我是2","我是3","我是4" };  AlertDialog.Builder listDialog =     new AlertDialog.Builder(MainActivity.this);  listDialog.setTitle("我是一个列表Dialog");  listDialog.setItems(items, new DialogInterface.OnClickListener() {    @Override    public void onClick(DialogInterface dialog, int which) {      // which 下标从0开始      // ...To-do      Toast.makeText(MainActivity.this,         "你点击了" + items[which],         Toast.LENGTH_SHORT).show();    }  });  listDialog.show();}

int yourChoice;private void showSingleChoiceDialog(){  final String[] items = { "我是1","我是2","我是3","我是4" };  yourChoice = -1;  AlertDialog.Builder singleChoiceDialog =     new AlertDialog.Builder(MainActivity.this);  singleChoiceDialog.setTitle("我是一个单选Dialog");  // 第二个参数是默认选项，此处设置为0  singleChoiceDialog.setSingleChoiceItems(items, 0,     new DialogInterface.OnClickListener() {    @Override    public void onClick(DialogInterface dialog, int which) {      yourChoice = which;    }  });  singleChoiceDialog.setPositiveButton("确定",     new DialogInterface.OnClickListener() {    @Override    public void onClick(DialogInterface dialog, int which) {      if (yourChoice != -1) {        Toast.makeText(MainActivity.this,         "你选择了" + items[yourChoice],         Toast.LENGTH_SHORT).show();      }    }  });  singleChoiceDialog.show();}

ArrayList<Integer> yourChoices = new ArrayList<>();private void showMultiChoiceDialog() {  final String[] items = { "我是1","我是2","我是3","我是4" };  // 设置默认选中的选项，全为false默认均未选中  final boolean initChoiceSets[]={false,false,false,false};  yourChoices.clear();  AlertDialog.Builder multiChoiceDialog =     new AlertDialog.Builder(MainActivity.this);  multiChoiceDialog.setTitle("我是一个多选Dialog");  multiChoiceDialog.setMultiChoiceItems(items, initChoiceSets,    new DialogInterface.OnMultiChoiceClickListener() {    @Override    public void onClick(DialogInterface dialog, int which,      boolean isChecked) {      if (isChecked) {        yourChoices.add(which);      } else {        yourChoices.remove(which);      }    }  });  multiChoiceDialog.setPositiveButton("确定",     new DialogInterface.OnClickListener() {    @Override    public void onClick(DialogInterface dialog, int which) {      int size = yourChoices.size();      String str = "";      for (int i = 0; i < size; i++) {        str += items[yourChoices.get(i)] + " ";      }      Toast.makeText(MainActivity.this,         "你选中了" + str,         Toast.LENGTH_SHORT).show();    }  });  multiChoiceDialog.show();}

private void showWaitingDialog() {  /* 等待Dialog具有屏蔽其他控件的交互能力   * @setCancelable 为使屏幕不可点击，设置为不可取消(false)   * 下载等事件完成后，主动调用函数关闭该Dialog   */  ProgressDialog waitingDialog=     new ProgressDialog(MainActivity.this);  waitingDialog.setTitle("我是一个等待Dialog");  waitingDialog.setMessage("等待中...");  waitingDialog.setIndeterminate(true);  waitingDialog.setCancelable(false);  waitingDialog.show();}

private void showProgressDialog() {  /* @setProgress 设置初始进度   * @setProgressStyle 设置样式（水平进度条）   * @setMax 设置进度最大值   */  final int MAX_PROGRESS = 100;  final ProgressDialog progressDialog =     new ProgressDialog(MainActivity.this);  progressDialog.setProgress(0);  progressDialog.setTitle("我是一个进度条Dialog");  progressDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);  progressDialog.setMax(MAX_PROGRESS);  progressDialog.show();  /* 模拟进度增加的过程   * 新开一个线程，每个100ms，进度增加1   */  new Thread(new Runnable() {    @Override    public void run() {      int progress= 0;      while (progress < MAX_PROGRESS){        try {          Thread.sleep(100);          progress++;          progressDialog.setProgress(progress);        } catch (InterruptedException e){          e.printStackTrace();        }      }      // 进度达到最大值后，窗口消失      progressDialog.cancel();    }  }).start();}

private void showInputDialog() {  /*@setView 装入一个EditView   */  final EditText editText = new EditText(MainActivity.this);  AlertDialog.Builder inputDialog =     new AlertDialog.Builder(MainActivity.this);  inputDialog.setTitle("我是一个输入Dialog").setView(editText);  inputDialog.setPositiveButton("确定",     new DialogInterface.OnClickListener() {    @Override    public void onClick(DialogInterface dialog, int which) {      Toast.makeText(MainActivity.this,      editText.getText().toString(),       Toast.LENGTH_SHORT).show();    }  }).show();}

<!-- res/layout/dialog_customize.xml--><!-- 自定义View --><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"  android:orientation="vertical"  android:layout_width="match_parent"  android:layout_height="match_parent">  <EditText    android:id="@+id/edit_text"    android:layout_width="match_parent"    android:layout_height="wrap_content"     /></LinearLayout>private void showCustomizeDialog() {  /* @setView 装入自定义View ==> R.layout.dialog_customize   * 由于dialog_customize.xml只放置了一个EditView，因此和图8一样   * dialog_customize.xml可自定义更复杂的View   */  AlertDialog.Builder customizeDialog =     new AlertDialog.Builder(MainActivity.this);  final View dialogView = LayoutInflater.from(MainActivity.this)    .inflate(R.layout.dialog_customize,null);  customizeDialog.setTitle("我是一个自定义Dialog");  customizeDialog.setView(dialogView);  customizeDialog.setPositiveButton("确定",    new DialogInterface.OnClickListener() {    @Override    public void onClick(DialogInterface dialog, int which) {      // 获取EditView中的输入内容      EditText edit_text =         (EditText) dialogView.findViewById(R.id.edit_text);      Toast.makeText(MainActivity.this,        edit_text.getText().toString(),        Toast.LENGTH_SHORT).show();    }  });  customizeDialog.show();}

/* 复写Builder的create和show函数，可以在Dialog显示前实现必要设置 * 例如初始化列表、默认选项等 * @create 第一次创建时调用 * @show 每次显示时调用 */private void showListDialog() {  final String[] items = { "我是1","我是2","我是3","我是4" };  AlertDialog.Builder listDialog =     new AlertDialog.Builder(MainActivity.this){         @Override    public AlertDialog create() {      items[0] = "我是No.1";      return super.create();    }     @Override    public AlertDialog show() {      items[1] = "我是No.2";      return super.show();    }  };  listDialog.setTitle("我是一个列表Dialog");  listDialog.setItems(items, new DialogInterface.OnClickListener() {    @Override    public void onClick(DialogInterface dialog, int which) {      // ...To-do    }  });  /* @setOnDismissListener Dialog销毁时调用   * @setOnCancelListener Dialog关闭时调用   */  listDialog.setOnDismissListener(new DialogInterface.OnDismissListener() {    public void onDismiss(DialogInterface dialog) {      Toast.makeText(getApplicationContext(),        "Dialog被销毁了",         Toast.LENGTH_SHORT).show();    }  });  listDialog.show();}