package com.basic.security.activity; import android.content.Intent; import android.os.Bundle; import android.os.SystemClock; import android.support.v4.app.FragmentActivity; import android.view.View; import com.basic.security.R; import com.basic.security.utils.PermissionHelper; public class WelcomeActivity extends FragmentActivity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_welcome); getWindow().getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_STABLE | View.SYSTEM_UI_FLAG_HIDE_NAVIGATION | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION | View.SYSTEM_UI_FLAG_FULLSCREEN | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY | View.SYSTEM_UI_FLAG_IMMERSIVE); if (!PermissionHelper.hasWriteStoragePermission(WelcomeActivity.this) ) { PermissionHelper.requestWriteStoragePermission(this); } new Thread(){ @Override public void run() { while (true) { if (PermissionHelper.hasWriteStoragePermission(WelcomeActivity.this) ) { Intent intent = new Intent(WelcomeActivity.this, MainActivity_.class); WelcomeActivity.this.startActivity(intent); WelcomeActivity.this.finish(); break; } SystemClock.sleep(200); } } }.start(); } }