因爲性能要求,android要求只能在UI線程中更新UI,要想在其餘線程中更新UI,給你們介紹一種方式:使用runOnUiThread(action)方法java
下面用這種方式更新一個TextView:android
package com.example.runonuithreadtest; import android.app.Activity; import android.os.Bundle; import android.widget.TextView; public class MainActivity extends Activity { private TextView tv; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); tv = (TextView) findViewById(R.id.tv); new MyThread().start(); } class MyThread extends Thread { @Override public void run() { runOnUiThread(new Runnable() { @Override public void run() { // TODO Auto-generated method stub try { //延遲兩秒更新 Thread.sleep(2000); } catch (InterruptedException e) { e.printStackTrace(); } tv.setText("更新後的TextView"); } }); } } }
固然對APP的性能測試,我比較經常使用的是這個平臺:www.ineice.comapp