我有 4 个活动:changeView、changeViewTwo、NoRunning、YesRunning。另外,我有 2 个 XML:yes_running 和 no_running
第一个屏幕(no_running)有一个按钮,可以像这样改变视图:
Button buttonchange01 = (Button) findViewById(R.id.Button01);
buttonchange01.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
startActivity(new Intent("com.example.runningtimer.changeView"));
}
});
在清单上
<activity
android:name="changeView"
android:label="@string/app_name" >
<intent-filter>
<action android:name="com.example.runningtimer.changeView" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
在 changeView.java 上
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.yes_running);
}
这是正确完成的,但是,当新的出现时,我有一个计数为 10 的进度条,它应该回到 no_running.xml 但它没有,这就是 YesRunning 活动的样子
public class YesRunningActivity extends Activity {
ProgressBar myProgressBar;
int myProgress = 0;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.yes_running);
myProgressBar=(ProgressBar)findViewById(R.id.progressbar_Horizontal);
new Thread(myThread).start();
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.no_running, menu);
return true;
}
public Runnable myThread = new Runnable(){
@Override
public void run() {
// TODO Auto-generated method stub
while (myProgress<100){
try{
myHandle.sendMessage(myHandle.obtainMessage());
Thread.sleep(100);
}
catch(Throwable t){ }
}
if (myProgress==100){
finish();
startActivity(new Intent("com.example.runningtimer.changeViewTwo"));
myProgress = 0;
}
}
Handler myHandle = new Handler(){
@Override
public void handleMessage(Message msg) {
// TODO Auto-generated method stub
myProgress++;
myProgressBar.setProgress(myProgress);
}
};
};
}
changeViewTwo 的清单
<activity
android:name="changeViewTwo"
android:label="@string/app_name" >
<intent-filter>
<action android:name="com.example.runningtimer.changeViewTwo" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
更改视图二
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.no_running);
}
知道为什么它不回去了吗?或者我怎样才能让它回去?