引导页&五秒跳转

public class MainActivity extends BaseActivity {
    private TextView textview;
    private SharedPreferences sp;

@Override
protected int layoutRID() {
    return R.layout.activity_main;
}

@Override
protected void initView() {
    textview = findViewById(R.id.textview);
}

@Override
protected void initData() {
    sp = getSharedPreferences("ydy", Context.MODE_PRIVATE);
    if (sp.getBoolean("first", false)) {
        startActivity(new Intent(MainActivity.this, SecondActivity.class));
        finish();
        return;
    }
    textview.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            sp.edit().putBoolean("first", true).commit();
            startActivity(new Intent(MainActivity.this, SecondActivity.class));
            handler.removeCallbacksAndMessages(null);
            finish();

        }
    });
    handler.sendEmptyMessageDelayed(0, 1000);
}

int time = 5;
Handler handler = new Handler() {
    @Override
    public void handleMessage(Message msg) {
        if (time > 0) {
            time--;
            textview.setText(time + "S");
            handler.sendEmptyMessageDelayed(0, 1000);
        } else {
            sp.edit().putBoolean("first", true).commit();
            startActivity(new Intent(MainActivity.this, SecondActivity.class));
            handler.removeCallbacksAndMessages(null);
            finish();
        }
    }
};
}