Android APP首次应用时导航栏制作源码

import android.app.Activity;

import android.content.Intent;

import android.content.SharedPreferences;

import android.content.SharedPreferences.Editor;

import android.os.Bundle;

import android.os.Handler;

import android.os.Message;

import android.view.KeyEvent;

import android.widget.LinearLayout;

/**

 * 软件启动界面

 * */

public class StartActivity extends Activity {

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.fragment_my01);
LinearLayout mLinear = (LinearLayout) findViewById(R.id.Fragment01Linear);
mLinear.setBackgroundResource(R.drawable.ic_splash_screen);

new Thread() {
public void run() {
try {
Thread.sleep(1500);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
Message msg = hand.obtainMessage();
hand.sendMessage(msg);
}

}.start();
};

Handler hand = new Handler() {
public void handleMessage(android.os.Message msg) {
super.handleMessage(msg);
if (isFristRun()) {
Intent intent = new Intent(StartActivity.this,
MainActivity.class);
startActivity(intent);
} else {
Intent intent = new Intent(StartActivity.this,
FrameActivity.class);
startActivity(intent);
}
finish();
};
};

private boolean isFristRun() {
SharedPreferences sharedPreferences = this.getSharedPreferences(
"share", MODE_PRIVATE);
boolean isFirstRun = sharedPreferences.getBoolean("isFirstRun", true);
Editor editor = sharedPreferences.edit();
if (!isFirstRun) {
return false;
} else {
editor.putBoolean("isFirstRun", false);
editor.commit();
return true;
}
}

public boolean onKeyDown(int keyCode, KeyEvent event) {
// TODO Auto-generated method stub
if (keyCode == KeyEvent.KEYCODE_BACK) {

}
return true;
}

}