安卓弹出框集合

安卓弹出框集合

效果

• 标题加内容
  

• 经典弹出框
  

• 单机列表
  

• 复选框

* 自定义对话框效果

实现源码

• 标题加内容

    /**
       * 只有标题加内容
       * @param view
       */
      public void Btn1(View view) {
          // 1. Instantiate an AlertDialog.Builder with its constructor
          AlertDialog.Builder builder = new AlertDialog.Builder(this);
          // 2. Chain together various setter methods to set the dialog characteristics
          builder.setMessage("我是内容")
                  .setTitle("我是标题");
          // 3. Get the AlertDialog from create()
          AlertDialog dialog = builder.create();
          //4. show
          dialog.show();
      }
  

• 经典的弹出框

      /**
       * 经典的弹出框
       * @param view
       */
      public void Btn2(View view) {
          AlertDialog.Builder builder = new AlertDialog.Builder(this);
          // Add the buttons
          builder.setMessage("我是内容")
                  .setTitle("我是标题")
                  .setIcon(R.mipmap.bulb)
                  .setPositiveButton("确定", new DialogInterface.OnClickListener() {
              public void onClick(DialogInterface dialog, int id) {
                  // User clicked OK button
                  Toast.makeText(MainActivity.this,"点击了确定按钮",Toast.LENGTH_SHORT).show();
              }
          });
          builder.setNegativeButton("取消", new DialogInterface.OnClickListener() {
              public void onClick(DialogInterface dialog, int id) {
                  Toast.makeText(MainActivity.this,"点击了取消按钮",Toast.LENGTH_SHORT).show();
              }
          });
          // Set other dialog properties
          // ...
          builder.setNeutralButton("中立按钮", new DialogInterface.OnClickListener() {
              @Override
              public void onClick(DialogInterface dialog, int which) {
                  Toast.makeText(MainActivity.this,"点击了中立按钮",Toast.LENGTH_SHORT).show();
              }
          });
          // Create the AlertDialog
          AlertDialog dialog = builder.create();
          //show
          dialog.show();
      }
  

• 单击列表，没有确认取消按钮

  /**
   * 单击列表，没有确认取消按钮
   * @param view
   */
  public void Btn3(View view) {
     final String[] arrs=new String[]{"red","block","gray","pcik"};
      AlertDialog.Builder builder = new AlertDialog.Builder(this);
      builder.setTitle("我是标题")
      .setItems(arrs, new DialogInterface.OnClickListener() {
          public void onClick(DialogInterface dialog, int which) {
              // The 'which' argument contains the index position
              // of the selected item
              Toast.makeText(MainActivity.this,"点击了"+arrs[which],Toast.LENGTH_SHORT).show();
          }
      });
      AlertDialog dialog =builder.create();
      //show
      dialog.show();
  }
  

• 复选框效果

       /**
       * 复选框效果
       * @param view
       */
      public void Btn4(View view) {
          final String[] arrs=new String[]{"red","block","gray","pcik"};
          final List mSelectedItems = new ArrayList();  // Where we track the selected items
          AlertDialog.Builder builder = new AlertDialog.Builder(this);
          // Set the dialog title
          builder.setTitle("我是标题")
                  // Specify the list array, the items to be selected by default (null for none),
                  // and the listener through which to receive callbacks when items are selected
                  .setMultiChoiceItems(arrs, null,
                          new DialogInterface.OnMultiChoiceClickListener() {
                              @Override
                              public void onClick(DialogInterface dialog, int which,
                                                  boolean isChecked) {
                                  if (isChecked) {
                                      // If the user checked the item, add it to the selected items
                                      mSelectedItems.add(which);
                                  } else if (mSelectedItems.contains(which)) {
                                      // Else, if the item is already in the array, remove it
                                      mSelectedItems.remove(Integer.valueOf(which));
                                  }
                              }
                          })
                  // Set the action buttons
                  .setPositiveButton("确定", new DialogInterface.OnClickListener() {
                      @Override
                      public void onClick(DialogInterface dialog, int id) {
                          // User clicked OK, so save the mSelectedItems results somewhere
                          // or return them to the component that opened the dialog
                         // ...
                          String str="";
                          for (int i = 0; i <mSelectedItems.size() ; i++) {
                              str+=arrs[i]+"/";
                          }
                          Toast.makeText(MainActivity.this,"点击了"+str,Toast.LENGTH_SHORT).show();
                      }
                  })
                  .setNegativeButton("取消", new DialogInterface.OnClickListener() {
                      @Override
                      public void onClick(DialogInterface dialog, int id) {
                         // ...
                          Toast.makeText(MainActivity.this,"点击了取消按钮",Toast.LENGTH_SHORT).show();
                      }
                  });
          AlertDialog dialog =builder.create();
          //show
          dialog.show();
      }
  

• 自定义对话框，可以根据自己需求设置任何内容。这里的例子是一个登录界面

  • 布局文件dialog_signin.xml

    <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
                  android:orientation="vertical"
                  android:layout_width="wrap_content"
                  android:layout_height="wrap_content">
        <ImageView
            android:src="@drawable/login"
            android:layout_width="match_parent"
            android:layout_height="64dp"
            android:scaleType="center"
            android:background="#FFFFBB33"
            android:contentDescription="@string/app_name" />
        <EditText
            android:id="@+id/username"
            android:inputType="textEmailAddress"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginTop="16dp"
            android:layout_marginLeft="4dp"
            android:layout_marginRight="4dp"
            android:layout_marginBottom="4dp"
            android:hint="请输入用户名" />
        <EditText
            android:id="@+id/password"
            android:inputType="textPassword"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginTop="4dp"
            android:layout_marginLeft="4dp"
            android:layout_marginRight="4dp"
            android:layout_marginBottom="16dp"
            android:fontFamily="sans-serif"
            android:hint="请输入密码"/>
    </LinearLayout>
    

  • activity内容

         /**
         * 自定义对话框，可以根据自己需求设置任何内容。这里的例子是一个登录界面
         * @param view
         */
        public void Btn5(View view) {
            AlertDialog.Builder builder = new AlertDialog.Builder(this);
            // Get the layout inflater
            LayoutInflater inflater = this.getLayoutInflater();
            // Inflate and set the layout for the dialog
            // Pass null as the parent view because its going in the dialog layout
            builder.setView(inflater.inflate(R.layout.dialog_signin, null))
                    // Add action buttons
                    .setPositiveButton("登录", new DialogInterface.OnClickListener() {
                        @Override
                        public void onClick(DialogInterface dialog, int id) {
                            // sign in the user ...
                            Toast.makeText(MainActivity.this,"这里写登录成功的处理",Toast.LENGTH_SHORT).show();
                        }
                    })
                    .setNegativeButton("取消", new DialogInterface.OnClickListener() {
                        public void onClick(DialogInterface dialog, int id) {
                         //
                            Toast.makeText(MainActivity.this,"取消",Toast.LENGTH_SHORT).show();
                        }
                    });
    
            AlertDialog dialog =builder.create();
            //show
            dialog.show();
        }
    

写在最后

想要学好安卓，不是到处看博客、看人家的文章、copy所谓的实现源码；而是去看官方文档。上面的代码全部都是直接从文档复制，简单处理的，可以直接用，文档有详细说明。加油！

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