Android——————课外拓展ProgressBar & ProgressDialog
作者:互联网
1.有些时候我们可能需要加载一些东西 下载东西 需要看到加载东西 下载东西界面
2.首先 点击 进入 PorgressDialog使用界面
3.
4.当点击progressBar练习:弹出:
5.当点击progressDialog练习: 弹出:
JAVA:
package com.example.myapplication; import androidx.appcompat.app.AppCompatActivity; import android.app.Dialog; import android.app.ProgressDialog; import android.content.DialogInterface; import android.os.Bundle; import android.view.View; import android.widget.Button; import android.widget.Toast; public class proActivity extends AppCompatActivity { private Button pro1,pro2; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_pro); pro1=findViewById(R.id.pro1); pro2=findViewById(R.id.pro2); pro1.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { ProgressDialog progressDialog=new ProgressDialog(proActivity.this); progressDialog.setTitle("登陆中~~~"); progressDialog.setMessage("正在登陆"); progressDialog.setButton(DialogInterface.BUTTON_POSITIVE, "取消登陆", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialogInterface, int i) { Toast.makeText(proActivity.this,"取消登陆",Toast.LENGTH_SHORT).show(); } }); progressDialog.setOnCancelListener(new DialogInterface.OnCancelListener() { @Override public void onCancel(DialogInterface dialogInterface) { Toast.makeText(proActivity.this,"加载完成",Toast.LENGTH_SHORT).show(); } }); progressDialog.show(); } }); pro2.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { ProgressDialog progressDialog=new ProgressDialog(proActivity.this); progressDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL); progressDialog.setTitle("提示"); progressDialog.setMessage("正在下载..."); progressDialog.setButton(DialogInterface.BUTTON_POSITIVE, "继续下载", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialogInterface, int i) { } }); progressDialog.setButton(DialogInterface.BUTTON_NEGATIVE, "取消下载", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialogInterface, int i) { } }); progressDialog.show(); } }); } }
XML:
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:padding="15dp" android:orientation="vertical" > <Button android:layout_marginTop="200dp" android:id="@+id/pro1" android:layout_width="match_parent" android:layout_height="wrap_content" android:text="progressBar练习" android:textAllCaps="false" /> <Button android:layout_marginTop="200dp" android:layout_width="match_parent" android:layout_height="wrap_content" android:text="progressDialog练习" android:textAllCaps="false" android:id="@+id/pro2"/> </LinearLayout>
标签:progressDialog,void,DialogInterface,ProgressBar,import,new,Android,ProgressDialo 来源: https://www.cnblogs.com/skyfail/p/13939408.html