Android ProgressDialog
16lz
2021-01-23
1)效果图如下
2)关键代码如下
package com.example.androidtestapp;import android.os.Bundle;import android.app.Activity;import android.view.Menu;import android.widget.*;import android.view.View;import android.app.ProgressDialog;public class MainActivity extends Activity {private Button button1=null;private ProgressDialog progressDialog1=null;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);button1=(Button)findViewById(R.id.button1);button1.setOnClickListener(new Button.OnClickListener(){public void onClick(View view){progressDialog1=ProgressDialog.show(MainActivity.this, "loading...", "please wait...",true);//为看到明显的效果,创建线程以暂停3s.new Thread(){public void run(){try{sleep(3000);}catch(Exception e){e.printStackTrace();}finally{progressDialog1.dismiss();}}}.start();}});}@Overridepublic boolean onCreateOptionsMenu(Menu menu) {// Inflate the menu; this adds items to the action bar if it is present.getMenuInflater().inflate(R.menu.main, menu);return true;}}
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