android 进度条学习

package com.example.androidtest;import android.app.Activity;import android.os.Bundle;import android.view.View;import android.widget.TextView;import android.content.Intent;import android.widget.*;public class TestActivity extends Activity  {private  int i=0;private TextView mytextview; private RadioGroup  genderGropu = null;private RadioButton famalebutton =null;private RadioButton malebutton =null;private CheckBox swimbox =null;private CheckBox runbox =null;private CheckBox readbox =null;private ProgressBar firstBar=null;private ProgressBar secondBar=null;private Button mybutton=null;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.other_activity);mytextview = (TextView)findViewById(R.id.mytextView);firstBar=(ProgressBar)findViewById(R.id.firstbar);secondBar=(ProgressBar)findViewById(R.id.secondbar);mybutton=(Button)findViewById(R.id.mybutton);mybutton.setText(R.string.progress);//mybutton.setOnClickListener(new ButtonListener());/*genderGropu = (RadioGroup)findViewById(R.id.gendergroup);famalebutton= (RadioButton)findViewById(R.id.female);malebutton= (RadioButton)findViewById(R.id.man);swimbox = (CheckBox)findViewById(R.id.swim);runbox =  (CheckBox)findViewById(R.id.run);readbox =  (CheckBox)findViewById(R.id.read);genderGropu.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener(){@Overridepublic void onCheckedChanged(RadioGroup group, int checkedId){// TODO Auto-generated method stubif(famalebutton.getId()==checkedId){  System.out.println("female");  Toast.makeText(TestActivity.this,"female被选中",Toast.LENGTH_SHORT).show();}else if (malebutton.getId() ==checkedId){ System.out.println("male被选中"); Toast.makeText(TestActivity.this,"male被选中",Toast.LENGTH_SHORT).show();}}});swimbox.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {@Overridepublic void onCheckedChanged(CompoundButton button, boolean ischecked) {// TODO Auto-generated method stubif(ischecked){System.out.println("游泳被选中");Toast.makeText(TestActivity.this,"游泳被选中",Toast.LENGTH_SHORT).show();}else{System.out.println("游泳没有被选中");Toast.makeText(TestActivity.this,"游泳没有被选中",Toast.LENGTH_SHORT).show();}}});runbox.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {@Overridepublic void onCheckedChanged(CompoundButton button, boolean ischecked) {// TODO Auto-generated method stubif(ischecked){System.out.println("跑步被选中");Toast.makeText(TestActivity.this,"跑步被选中",Toast.LENGTH_SHORT).show();}else{System.out.println("跑步没有被选中");Toast.makeText(TestActivity.this,"跑步没有被选中",Toast.LENGTH_SHORT).show();}}});readbox.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {@Overridepublic void onCheckedChanged(CompoundButton button, boolean ischecked) {// TODO Auto-generated method stubif(ischecked){System.out.println("阅读被选中");Toast.makeText(TestActivity.this,"阅读被选中",Toast.LENGTH_SHORT).show();}else{System.out.println("阅读没有被选中");Toast.makeText(TestActivity.this,"阅读没有被选中",Toast.LENGTH_SHORT).show();}}});*///Intent intent =new Intent();//intent = getIntent();//String factorone = intent.getStringExtra("one");//String factortwo = intent.getStringExtra("two");//int factoroneint = Integer.parseInt(factorone);//int factortwoint = Integer.parseInt(factortwo);//int result = factoroneint * factortwoint;//mytextview.setText(result + "");}public void myClick(View target){  if(i == 0) {     firstBar.setVisibility(View.VISIBLE);     secondBar.setVisibility(View.VISIBLE);  }  else if(i<100) { firstBar.setProgress(i); firstBar.setSecondaryProgress(i+10); secondBar.setProgress(i);   }  else { firstBar.setVisibility(View.GONE);     secondBar.setVisibility(View.GONE);   } i=i+10;}}

<pre name="code" class="html"><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools"    android:layout_width="fill_parent"    android:layout_height="fill_parent"    android:orientation="vertical"     android:background="@color/background_color">        <TextView     android:id="@+id/mytextView"     android:layout_width="fill_parent"     android:layout_height="wrap_content"     android:text="" />       <!--    <RadioGroup          android:id="@+id/gendergroup"         android:layout_width="wrap_content"         android:layout_height="wrap_content"         >             <RadioButton         android:id="@+id/man"         android:layout_width="wrap_content"         android:layout_height="wrap_content"         android:text="@string/male"          />                    <RadioButton         android:id="@+id/female"         android:layout_width="wrap_content"         android:layout_height="wrap_content"         android:text="@string/female" />                    </RadioGroup>     <CheckBox        android:id="@+id/swim"         android:layout_width="wrap_content"         android:layout_height="wrap_content"         android:text="@string/swim"         />         <CheckBox         android:id="@+id/run"         android:layout_width="wrap_content"         android:layout_height="wrap_content"         android:text="@string/run"         />        <CheckBox         android:id="@+id/read"         android:layout_width="wrap_content"         android:layout_height="wrap_content"         android:text="@string/read"         />  -->                <ProgressBar          android:id="@+id/firstbar"         style="?android:attr/progressBarStyleHorizontal"         android:layout_width="200dp"         android:layout_height="wrap_content"         android:visibility="gone"                  />     <ProgressBar          android:id="@+id/secondbar"         style="?android:attr/progressBarStyle"         android:layout_width="wrap_content"         android:layout_height="wrap_content"         android:visibility="gone         />      <Button        android:id="@+id/mybutton"        android:layout_width="fill_parent"        android:layout_height="wrap_content"        android:layout_below="@+id/Textb"        android:layout_marginTop="68dp"         android:onClick="myClick"          /></LinearLayout>

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