如题,点击即使按钮后线程启动,但是界面上的TextView与PorgressBar并不显示
package com.example.progressbartime;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.support.v4.app.Fragment;
import android.support.v7.app.ActionBarActivity;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.ProgressBar;
import android.widget.TextView;
public class MainActivity extends ActionBarActivity {
private Button start,stop;
private ProgressBar hbar,mbar,sbar,csbar;
private TextView htv,mtv,stv,cstv;
private Thread mThread;
private Handler mHandler;
private int hour=0,minute=0,second=0,cssecond=0;
private int STOP=0;
private final static int MSG=1;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
hbar=(ProgressBar) findViewById(R.id.hourBar);
sbar=(ProgressBar) findViewById(R.id.secondBar);
mbar=(ProgressBar) findViewById(R.id.minuteBar);
csbar=(ProgressBar) findViewById(R.id.CSecondBar);
htv=(TextView) findViewById(R.id.hourText);
mtv=(TextView) findViewById(R.id.minuteTV);
stv=(TextView) findViewById(R.id.secondTV);
cstv=(TextView) findViewById(R.id.CSecondTV);
start=(Button) findViewById(R.id.startBtn);
stop=(Button) findViewById(R.id.stopBtn);
start.setOnClickListener(new startBtnClick());
stop.setOnClickListener(new stopBtnClick());
//设置进度条的最大值以及当前进度
hbar.setMax(1000);
//hbar.setProgress(0);
mbar.setMax(60);
//mbar.setProgress(0);
sbar.setMax(60);
//sbar.setProgress(0);
csbar.setMax(100);
//csbar.setProgress(0);
mThread=new mThread();
mHandler=new mHandler();
if (savedInstanceState == null) {
getSupportFragmentManager().beginTransaction()
.add(R.id.container, new PlaceholderFragment())
.commit();
}
}
public class startBtnClick implements OnClickListener {
@Override
public void onClick(View arg0) {
STOP=1;
mThread.start();
}
}
public class stopBtnClick implements OnClickListener {
@Override
public void onClick(View arg0) {
STOP=0;
}
}
public class mHandler extends Handler {
@Override
public void handleMessage(Message msg) {
switch(msg.what){
case MSG:{
int csecond=((Integer) msg.obj)%101;
if(csecond==100){
second++;
csecond=0;
}
if(second==60){
minute++;
second=0;
}
if(minute==60){
hour++;
minute=0;
}
hbar.setProgress(hour);
mbar.setProgress(minute);
sbar.setProgress(second);
csbar.setProgress(csecond);
String h=Integer.toString(hour)+"h";
String m=Integer.toString(minute)+"m";
String s=Integer.toString(second)+"s";
String mm=Integer.toString(csecond)+"mm";
htv.setText(h);
mtv.setText(m);
stv.setText(s);
cstv.setText(mm);
break;
}
}
}
}
public class mThread extends Thread {
@Override
public void run() {
while(STOP==1){
try {
Thread.sleep(10);
cssecond++;
Message message=new Message();
mHandler.obtainMessage(MSG,cssecond).sendToTarget();
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
}
@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);
}
/**
* A placeholder fragment containing a simple view.
*/
public static class PlaceholderFragment extends Fragment {
public PlaceholderFragment() {
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_main, container, false);
return rootView;
}
}
}