0x002 Dialog

0x000 环境：

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• 系统：Win10
• IDE:Android Studio2.0

0x002 简单使用

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• 继承树：
  Dialog是AlertDialog、DatePickerDialog、ProgressDialog等一些常用Dialog的直接或者间接父类，但是官网文档说我们应当避免直接使用父类，而应该使用他们的子类。

  
  Paste_Image.png

• AlertDialog最简单使用方式：

  • 代码：

    AlertDialog.Builder builder=new AlertDialog.Builder(DialogActivity.this);
            builder.setTitle("SimpleAlert");
            builder.setMessage("are you ok");
            builder.setNegativeButton("Cancle", new DialogInterface.OnClickListener() {
                @Override
                public void onClick(DialogInterface dialog, int which) {
                    Toast.makeText(getApplicationContext(),"you click cancle",Toast.LENGTH_LONG).show();
    
                }
            });
            builder.setPositiveButton("Sure", new DialogInterface.OnClickListener() {
                @Override
                public void onClick(DialogInterface dialog, int which) {
                    Toast.makeText(getApplicationContext(),"you click sure",Toast.LENGTH_LONG).show();
    
                }
            });
            builder.create().show();
    

  • 效果：

    
    Paste_Image.png

  -说明：Dialog使用的是建造者模式，所以我们要用build来建造一个dialog，同时根据建造者模式的特性，我们还可以这么写：

      AlertDialog.Builder builder=new AlertDialog.Builder(DialogActivity.this);
            builder.setTitle("SimpleAlert").
            setMessage("are you ok").
            setNegativeButton("Cancle", new DialogInterface.OnClickListener() {
                @Override
                public void onClick(DialogInterface dialog, int which) {
                    Toast.makeText(getApplicationContext(),"you click cancle",Toast.LENGTH_LONG).show();
  
                }
            }).
            setPositiveButton("Sure", new DialogInterface.OnClickListener() {
                @Override
                public void onClick(DialogInterface dialog, int which) {
                    Toast.makeText(getApplicationContext(),"you click sure",Toast.LENGTH_LONG).show();
  
                }
            }).create().show();
  

• DialogFragment
  官网中推荐我们不应当这么使用，而是应该使用DialogFragment，因为这样可以更好地管理Dialog的生命周期和方法。所以接下来都会使用DialogFragment的方式来写

  • 代码：
    //MyDialogFragment.java
    public class MyDialogFragment extends android.support.v4.app.DialogFragment {
    @NonNull
    @Override
    public Dialog onCreateDialog(Bundle savedInstanceState) {
    AlertDialog.Builder builder=new AlertDialog.Builder(getActivity());
    builder.setTitle("first alert");
    builder.setMessage("are you OK");
    builder.setPositiveButton("Sure", new DialogInterface.OnClickListener() {
    @Override
    public void onClick(DialogInterface dialog, int which) {
    Toast.makeText(getContext(),"you click sure",Toast.LENGTH_LONG).show();
    }
    });
    builder.setNegativeButton("Cancle", new DialogInterface.OnClickListener() {
    @Override
    public void onClick(DialogInterface dialog, int which) {
    Toast.makeText(getContext(),"you click cancle",Toast.LENGTH_LONG).show();

        }
    });
    return builder.create();
    }
    }
    //DialogActivity
    MyDialogFragment myDialogFragment=new MyDialogFragment();
    myDialogFragment.show(getSupportFragmentManager(),"");
    

0x003 AlertDialog

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• 再添加一个按钮

  • 代码：
    public class NatureButtonFragment extends DialogFragment {
    @NonNull
    @Override
    public Dialog onCreateDialog(Bundle savedInstanceState) {
    AlertDialog.Builder builder=new AlertDialog.Builder(getActivity());
    builder.setTitle("more button")
    .setMessage("more button")
    //确认按钮
    .setNegativeButton("SURE", new DialogInterface.OnClickListener() {
    @Override
    public void onClick(DialogInterface dialog, int which) {
    Toast.makeText(getContext(),"you click sure",Toast.LENGTH_LONG).show();

                }
            })
            //取消按钮
            .setPositiveButton("CANCLE", new DialogInterface.OnClickListener() {
                @Override
                public void onClick(DialogInterface dialog, int which) {
                    Toast.makeText(getContext(),"you click cancle",Toast.LENGTH_LONG).show();
    
                }
            })
            //第三个按钮，不是确认也不是取消，而是介于二者中间，例如Remind Me Later
            .setNeutralButton("REMAIND ME LATER", new DialogInterface.OnClickListener() {
                @Override
                public void onClick(DialogInterface dialog, int which) {
                    Toast.makeText(getContext(),"you click later",Toast.LENGTH_LONG).show();
                }
            });
    return builder.create();
    
    }
    }
    

  • 效果

Paste_Image.png

• 添加一个列表
• 代码：
  //ListDialogFragment.java
  public class ListDialogFragment extends DialogFragment {
  @NonNull
  @Override
  public Dialog onCreateDialog(Bundle savedInstanceState) {
  final String s[] = new String[]{"item1", "item2", "item3"};
  AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
  builder.setTitle("List")
  .setItems(s, new DialogInterface.OnClickListener() {
  @TargetApi(Build.VERSION_CODES.M)
  @Override
  public void onClick(DialogInterface dialog, int which) {
  Toast.makeText(getContext(), "you click " + s[which], Toast.LENGTH_LONG).show();
  }
  });
  return builder.create();
  }
  }
• 效果：

Paste_Image.png

• 添加一列单选按钮
  • 代码：
    public class ListDialogFragment extends DialogFragment {
    @NonNull
    @Override
    public Dialog onCreateDialog(Bundle savedInstanceState) {
    final String s[] = new String[]{"item1", "item2", "item3"};
    AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
    builder.setTitle("List")
    .setItems(s, new DialogInterface.OnClickListener() {
    @TargetApi(Build.VERSION_CODES.M)
    @Override
    public void onClick(DialogInterface dialog, int which) {
    Toast.makeText(getContext(), "you click " + s[which], Toast.LENGTH_LONG).show();
    }
    });
    return builder.create();
    }
    }
  • 效果：

Paste_Image.png

• 添加一列多选按钮

  • 代码：
    public class MultipChoiceDialogFragment extends DialogFragment {
    @TargetApi(Build.VERSION_CODES.M)
    @NonNull
    @Override
    public Dialog onCreateDialog(Bundle savedInstanceState) {
    final String s[]={"item1","item2","item3"};
    final boolean s2[]={true,false,false};

              AlertDialog.Builder builder=new AlertDialog.Builder(getContext());
              builder.setMultiChoiceItems(s, s2, new DialogInterface.OnMultiChoiceClickListener() {
                  @Override
                  public void onClick(DialogInterface dialog, int which, boolean isChecked) {
                      Toast.makeText(getContext(),s[which]+" isChecked is "+isChecked,Toast.LENGTH_LONG).show();
                  }
              });
              return builder.create();
          }
      }
    

  -效果：

Paste_Image.png

• 自定义视图
  • 代码：
    //CustomerDialogFragment.java
    public class CustomerDialogFragment extends DialogFragment {
    @TargetApi(Build.VERSION_CODES.M)
    @NonNull
    @Override
    public Dialog onCreateDialog(Bundle savedInstanceState) {
    AlertDialog.Builder builder=new AlertDialog.Builder(getContext());
    builder.setView(R.layout.fragment_dialog_customer);
    return builder.create();
    }
    }
    //R.layout.fragment_dialog_customer.xml
    <?xml version="1.0" encoding="utf-8"?>
    <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical" android:layout_width="match_parent"
    android:padding="20dp"
    android:layout_height="match_parent">
    <EditText
    android:hint="username"
    android:inputType="textEmailAddress"
    android:layout_width="match_parent"
    android:layout_height="wrap_content" />
    <EditText
    android:hint="password"
    android:inputType="textPassword"
    android:layout_width="match_parent"
    android:layout_height="wrap_content" />
    <LinearLayout
    android:layout_width="match_parent"
    android:layout_height="wrap_content">
    <Button
    android:text="REGISTER"
    android:layout_weight="1"
    android:layout_width="0px"
    android:layout_height="wrap_content" />
    <Button
    android:text="LOGIN"
    android:layout_weight="1"
    android:layout_width="0px"
    android:layout_height="wrap_content" />
    </LinearLayout>
    </LinearLayout>
  • 效果：

Paste_Image.png

• 在activity中处理按钮事件：

  • 代码：
    //EventBackDialogFragment .java
    public class EventBackDialogFragment extends DialogFragment {
    public interface EventBackDialogListener{
    public void OnPositiveClick(DialogFragment dialogFragment);
    public void OnNegativeClick(DialogFragment dialogFragment);
    }
    EventBackDialogListener mListener;
    @NonNull
    @Override
    public Dialog onCreateDialog(Bundle savedInstanceState) {

              AlertDialog.Builder builder = new AlertDialog.Builder(getContext());
              builder.setNegativeButton("Cancle", new DialogInterface.OnClickListener() {
                  @Override
                  public void onClick(DialogInterface dialog, int which) {
                      mListener.OnNegativeClick(EventBackDialogFragment.this);
                  }
              })
                      .setPositiveButton("SURE", new DialogInterface.OnClickListener() {
                          @Override
                          public void onClick(DialogInterface dialog, int which) {
                              mListener.OnPositiveClick(EventBackDialogFragment.this);
                          }
                      });
              return builder.create();
      
          }
      
          @Override
          public void onAttach(Activity activity) {
      
              super.onAttach(activity);
              mListener= (EventBackDialogListener) activity;
          }
      }
      //DialogActivity
    public class DialogActivity extends ListActivity implements   EventBackDialogFragment.EventBackDialogListener {
      @Override
      protected void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
        EventBackDialogFragment eventBackDialogFragment=new EventBackDialogFragment();
          eventBackDialogFragment.show(getFragmentManager(),"");
      }
     @Override
    public void OnPositiveClick(android.app.DialogFragment dialogFragment) {
    Toast.makeText(getApplicationContext(),"you  click Sure",Toast.LENGTH_LONG).show();
    
    }
    
    @Override
    public void OnNegativeClick(android.app.DialogFragment dialogFragment) {
     Toast.makeText(getApplicationContext(),"you  click Cancle",Toast.LENGTH_LONG).show();
    
    }
    }
    

0x004 ProgressDialog

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• 概述：progressDialog和DatapickerDilaog等其实不过是AlertDialog的子类，所以说白了，不过是一个封装好的Dialog，比如progressDlialog不过是封装了一个progress的AlertDialog。

Paste_Image.png

• progressDialog进度条

  • 代码：
    public class ProgressDialogFragment extends DialogFragment {
    @TargetApi(Build.VERSION_CODES.M)
    @NonNull
    @Override
    public Dialog onCreateDialog(Bundle savedInstanceState) {

            ProgressDialog progressDialog=new ProgressDialog(getContext());
            return progressDialog;
        }
    }
    

  • 效果图

Paste_Image.png

• 带进度的progress
  在ProgressDialog.java中，有一个方法名为setProgressStyle(int style ),我们跳到mProgressStyle,就会看到
  public static final int STYLE_SPINNER = 0;//spinner进度条
  public static final int STYLE_HORIZONTAL = 1;//horizontal进度条
  Paste_Image.png

Paste_Image.png

• 代码：

   public class ProgressHorizatalDialogFragment extends DialogFragment {
     @TargetApi(Build.VERSION_CODES.M)
     @NonNull
     @Override
     public Dialog onCreateDialog(Bundle savedInstanceState) {
  
         ProgressDialog progressDialog=new ProgressDialog(getContext());
         progressDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
         progressDialog.setMessage("正在下载");
         progressDialog.setProgress(20);
         progressDialog.setMax(100);
         return progressDialog;
     }
   }
  

• 效果

Paste_Image.png

0x005 DatePickerDialog

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• 代码：
  public class DatePickerDialogFragment extends DialogFragment {
  @TargetApi(Build.VERSION_CODES.M)
  @NonNull
  @Override
  public Dialog onCreateDialog(Bundle savedInstanceState) {
  DatePickerDialog datePickerDialog=new DatePickerDialog(getContext(), new DatePickerDialog.OnDateSetListener() {
  @Override
  public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) {

                }
            },2016,10,12);
            return datePickerDialog;
    
        }
    }
  

• 效果：

Paste_Image.png

TimePickerDialog

• 代码
  public class TimePickerDialogFragment extends DialogFragment {
  @TargetApi(Build.VERSION_CODES.M)
  @NonNull
  @Override
  public Dialog onCreateDialog(Bundle savedInstanceState) {
  TimePickerDialog timePickerDialog=new TimePickerDialog(getContext(), new TimePickerDialog.OnTimeSetListener() {
  @Override
  public void onTimeSet(TimePicker view, int hourOfDay, int minute) {
  Toast.makeText(getContext(),"you choice"+hourOfDay+":"+minute,Toast.LENGTH_LONG).show();
  }
  },12,12,true);
  timePickerDialog.show();
  return timePickerDialog;
  }
  }
• 效果

Paste_Image.png