我真的不明白msg.what?如果有人可以解释如何使用它,那么我的处理程序的switch语句可以将文本视图中的更改分开,我真的会指出它,非常感谢你们的高级。
这是我的处理程序:
mHandler = new Handler() {
public void handleMessage(Message msg) {
// TODO Auto-generated method stub
super.handleMessage(msg);
switch (msg.what){
}
Bundle bundle = msg.getData();
String string = bundle.getString("outKey");
display.setText(string);
}
};
这是msg的来源:
public class myThread extends Thread {
String outString;
Thread hello = new Thread() {
@Override
public void run() {
// TODO Auto-generated method stub
super.run();
String P1 = "Enter Point 1.";
Message msg1 = Message.obtain();
Bundle bundle1 = new Bundle();
bundle1.putString("P1Key", P1);
msg1.setData(bundle1);
msg1.what = POINTONE;
mHandler.sendMessage(msg1);
synchronized(Lock){
try {
Lock.wait();
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
outString = call.getCoords();
}
Message msg = Message.obtain();
Bundle bundle = new Bundle();
bundle.putString("outKey", outString);
msg.setData(bundle);
mHandler.sendMessage(msg);
}
};
答案 0 :(得分:1)
msg.what用于中继简单的int而不必担心将其添加到消息中。您的switch语句可以将msg.what视为整数