diaLog的学习笔记

资料阅读

了解dialog的类别和使用

http://www.cnblogs.com/xiaoluo501395377/p/3419398.html

http://www.cnblogs.com/xiaoluo501395377/p/3421727.html

实现一个自定义的dialog

https://blog.csdn.net/Small_Lee/article/details/50602400

https://blog.csdn.net/small_lee/article/details/50602500

progressBar和progressDialog的使用

https://blog.csdn.net/hardworkingant/article/details/71910731

新版本谷歌推荐用dialogFragment来替代dialog和相关的子类,能更好的管理窗口的生命周期以及在屏幕切换的时候,及时的保存数据

资料参考  https://blog.csdn.net/xiangzhihong8/article/details/38294059

小实践:设置一个浮空的progressBar(DialogFragment)

布局文件

<android.support.constraint.ConstraintLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="wrap_content">

    <TextView
        android:id="@+id/tv_remind"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginLeft="8dp"
        android:layout_marginStart="8dp"
        android:text="@string/wait_please_qsh"
        app:layout_constraintBottom_toBottomOf="@+id/progressBar"
        app:layout_constraintEnd_toStartOf="@+id/progressBar"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="@+id/progressBar" />

    <ProgressBar
        android:id="@+id/progressBar"
        style="?android:attr/progressBarStyle"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginBottom="16dp"
        android:layout_marginEnd="8dp"
        android:layout_marginLeft="8dp"
        android:layout_marginRight="8dp"
        android:layout_marginStart="8dp"
        android:layout_marginTop="16dp"
        android:indeterminate="true"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent" />
</android.support.constraint.ConstraintLayout>

dialogFragment

重写oncancle()和onDismiss()

public class ProgressBarFragment extends DialogFragment {
    private static final String TAG = "LogUtil.ProgressBarFt";

    @Nullable
    @Override
    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
       return inflater.inflate(R.layout.progress_bar_no_click,container);
    }

    @Override
    public void onCancel(DialogInterface dialog) {
        LogUtil.i(TAG, "onCancel: ");
        super.onCancel(dialog);
    }

    @Override
    public void onDismiss(DialogInterface dialog) {
        LogUtil.i(TAG, "onDismiss: ");
        super.onDismiss(dialog);
    }
}

调用

 ProgressBarFragment progressBar=new ProgressBarFragment();
 progressBar.show(getSupportFragmentManager(),"inquireCustomDuplicate");

实现效果

填坑:

1,怎么设置diolog的宽度

//获得屏幕的实例
        Display d=getWindowManager().getDefaultDisplay();
//获得窗体的属性
        WindowManager.LayoutParams lp = dialogWindow.getAttributes();
//设置Dialog距离底部的距离
        lp.y = 20;
//设置diolog的宽度位屏幕宽度
        Point point=new Point();
        d.getSize(point);
        lp.width=point.x;
//将属性设置给窗体
        dialogWindow.setAttributes(lp);

获取屏幕宽度

可以通过Point=d.getSize(),point.x和point.y就是屏幕的宽度和高度

也可以直接通过安卓内置的参数

LayoutParams.match_Parent或者LayoutParams.wrap_content.

https://blog.csdn.net/liuhaomatou/article/details/22899925/

2.设置一个AlertDialog

AlertDialog.Builder builder=new AlertDialog.Builder(getContext());
                builder.setMessage("确定退出吗");
                builder.setPositiveButton("确定", new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        Toast.makeText(getContext(), "确定退出", Toast.LENGTH_SHORT).show();
                        OkHttp3Utils.sendHttpLoginOutRequest(new Callback() {
                            @Override
                            public void onFailure(Call call, IOException e) {
                               
                            }

                            @Override
                            public void onResponse(Call call, Response response) throws IOException {
                                    if (response.isSuccessful()){
                                        String strResponse=response.body().string();
                                        LogU.i(TAG, "onResponse: response="+strResponse);
                                        System.exit(0);
                                    }
                            }
                        });
                    }
                });
                builder.setNegativeButton("取消", null);
                builder.show();

参考如何通过dialog退出程序

https://www.jb51.net/article/79128.htm