Android中ProgressDialog的简单示例

最新推荐文章于 2025-08-08 23:51:41 发布

iteye_7879

最新推荐文章于 2025-08-08 23:51:41 发布

阅读量72

点赞数

文章标签：移动开发

本文展示了一个使用Android实现的进程对话框活动示例，包括创建对话框、监听按钮点击事件以及后台线程执行计算任务。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

package test.zxn;

import android.app.Activity;
import android.os.Bundle;
import android.app.ProgressDialog;
import android.os.Handler;
import android.os.Message;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;

public class ProcessDialogActivity extends Activity {

private TextView statusTextView;
private Button beginBtn;
private ProgressDialog progressDialog;

@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);

setContentView(R.layout.main);
statusTextView = (TextView)findViewById(R.id.status);
beginBtn = (Button)findViewById(R.id.beginBtn);
setListener();
}

private Handler handler = new Handler(){
public void handleMessage(Message msg)
{
progressDialog.dismiss();
statusTextView.setText("Completed!");
}
};

private void setListener(){

beginBtn.setOnClickListener(new View.OnClickListener() {
@Overridepackage test.zxn;

import android.app.Activity;
import android.os.Bundle;
import android.app.ProgressDialog;
import android.os.Handler;
import android.os.Message;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;

public class ProcessDialogActivity extends Activity {

private TextView statusTextView;
private Button beginBtn;
private ProgressDialog progressDialog;

@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);

setContentView(R.layout.main);
statusTextView = (TextView)findViewById(R.id.status);
beginBtn = (Button)findViewById(R.id.beginBtn);
setListener();
}

private Handler handler = new Handler(){
public void handleMessage(Message msg)
{
progressDialog.dismiss();
statusTextView.setText("Completed!");
}
};

private void setListener(){

beginBtn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
progressDialog = ProgressDialog.show(ProcessDialogActivity.this,
"loading...", "Please wait...", true, false);

new Thread()
{
public void run()
{
Calculation.calculate(4);
handler.sendEmptyMessage(0);
}
}.start();
}
});
}
}
public void onClick(View v) {
// TODO Auto-generated method stub
progressDialog = ProgressDialog.show(ProcessDialogActivity.this,
"loading...", "Please wait...", true, false);

new Thread()
{
public void run()
{
Calculation.calculate(4);
handler.sendEmptyMessage(0);
}
}.start();
}
});
}
}

代码地址: ProgressDialogDemo