Android在子线程中更新UI的方法汇总(共七种)
1、常规写法：new Handler()的handleMessage()和handler.sendMessage(msg)
Handler handler = new Handler() {
@Override
public void handleMessage(Message msg) {
super.handleMessage(msg);
}
};
new Thread(new Runnable() {
@Override
public void run() {
Message msg = Message.obtain();
msg.what = 1000;
msg.arg1 = 10;
handler.sendMessage(msg);
}
}).start();
2、handler的另一种用法：
private Handler.Callback callback = new Handler.Callback() {
@Override
public boolean handleMessage(Message msg) {
return true;
}
};
Handler handler1 = new Handler(callback);
new Thread(new Runnable() {
@Override
public void run() {
Message msg = Message.obtain();
msg.what = 1001;
msg.arg1 = 11;
handler1.sendMessage(msg);
}
}).start();
3、handler.post(runnable)
Handler handler = new Handler() {
@Override
public void handleMessage(Message msg) {
super.handleMessage(msg);
}
};
new Thread(new Runnable() {
@Override
public void run() {
handler.post(new Runnable() {
@Override
public void run() {
}
});
}
}).start();
4、handler.postDelayed(runnable, milliseconds)
Handler handler = new Handler() {
@Override
public void handleMessage(Message msg) {
super.handleMessage(msg);
}
};
new Thread(new Runnable() {
@Override
public void run() {
handler.postDelayed(new Runnable() {
@Override
public void run() {
}
}, 3000);
}
}).start();
5、activity.runOnUiThread(runnable)
new Thread(new Runnable() {
@Override
public void run() {
runOnUiThread(new Runnable() {
@Override
public void run() {
}
});
}
}).start();
6、view.post(runnable)
new Thread(new Runnable() {
@Override
public void run() {
button.post(new Runnable() {
@Override
public void run() {
}
});
}
}).start();
7、view.postDelayed(runnable, milliseconds)
new Thread(new Runnable() {
@Override
public void run() {
button.postDelayed(new Runnable() {
@Override
public void run() {
}
}, 3000);
}
}).start();
