Android之旅第五站——进度条对话框dialog …

进度条对话框更加简单了。。

效果图：

附上代码：

Mainactivity：

package com.example.dialog1;

import android.app.Activity;
import android.app.ProgressDialog;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.Button;

public class MainActivity extends Activity {
private Button bt;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        initViews();

    }

private void initViews() {
// TODO Auto-generated method stub
        bt = (Button) findViewById(R.id.bt);
    }

public void myclick(View v) {

        ProgressDialog pd=new ProgressDialog(this);
        pd.setMax(100);
        pd.setSecondaryProgress(30);
        pd.setTitle("进度条：");
        pd.setIcon(R.drawable.ic_launcher);
        pd.setMessage("正在下载。。。");

        pd.show();

    }



@Override
public 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;
    }

@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
if (id == R.id.action_settings) {
return true;
        }
return super.onOptionsItemSelected(item);
    }
}

xml：

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context="com.example.dialog1.MainActivity" >

    <Button 
       android:id="@+id/bt"
       android:layout_width="wrap_content"
       android:layout_height="wrap_content"
       android:text="progress"
       android:onClick="myclick"
        />



</RelativeLayout>