Android application startup speed optimization
- 2020-12-20 03:45:28
- OfStack
In developing Android applications, the startup speed becomes slower and slower as more features are added. Is there a way to make your app start up 1 point faster?
The method is man's idea. Let's start with my implementation method:
1. Move the contents initialized in onCreate to the thread for initialization, load, etc
2 After initialization is complete, send a message through Handler,
3 After receiving the message in Hander, the complete interface is initialized again.
public class MainActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main); // Set up the layout population
// Use threads to load data asynchronously without blocking the interface.
new Thread(){
@Override
public void run() {
// TODO Auto-generated method stub
super.run();
initData();
}
}.start();
}
private final static int MSG_INIT_VIEW = 0xA00;
private final Handler handler = new Handler() {
@Override
public void dispatchMessage(Message msg) {
switch (msg.what) {
case MSG_INIT_VIEW:
initView();
break;
default:
super.dispatchMessage(msg);
}
}
};
private void initData(){
try {
Thread.sleep(5000);// Simulate load data required 5 seconds
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
// The data is loaded and the interface is ready to be updated
handler.sendEmptyMessage(MSG_INIT_VIEW);
}
private void initView(){
//TODO Refresh the interface
}
}
That is the end of this article, I hope you learn Android software programming is helpful.