Android在子线程中更新UI的方法汇总(共七种)
16lz
2021-01-23
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();更多相关文章
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