Question

我使用以下代码创建了一个启动画面：

public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    this.setContentView(R.layout.splash_layout);

    Thread splashThread = new Thread() {
        @Override
        public void run() {
            try {
                int waited = 0;
                while (_active && (waited < _splashTime)) {
                    sleep(100);
                    if (_active) {
                        waited += 100;
                    }
                }
            } catch (InterruptedException e) {
                // do nothing
            } finally {
                _active = false;
                finish();
                startActivity(new Intent(SplashActivity.this, MyMainActivity.class));
            }
        }
    };

    splashThread.start();
}

在splash_layout中有一个图像视图，在启动画面出现一段时间后，然后消失，然后MyMainActivity启动，问题是，在启动消失后，在MyMainActivity启动之前，我可以看到上一个屏幕（与我的应用程序无关），例如带有小部件的桌面，或以前运行的应用程序），如何使转换流畅，以便直接将屏幕转到MyMainActivity？

谢谢！

Answer 1

你能试试吗我不确定这是100％的工作，但尝试可能会有所帮助..

protected int _splashTime = 3000;

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.splash_layout);
    Handler handler = new Handler();
    handler.postDelayed(new Runnable() {
        public void run() {
            finish();
            startActivity(new Intent(SplashActivity.this, MyMainActivity.class));
        }
    }, _splashTime);
}

Answer 2

尝试在finish()后调用startActivity()。

Answer 3

private static final long SPLASH_SCREEN_MS = 2500;

private long mTimeBeforeDelay;
private Handler mSplashHandler;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_splash_screen);
    // Create a new Handler.
    mSplashHandler = new Handler();
}

@Override
protected void onResume() {
    super.onResume();
    // The first time mTimeBeforeDelay will be 0.
    long gapTime = System.currentTimeMillis() - mTimeBeforeDelay;
    if (gapTime > SPLASH_SCREEN_MS) {
        gapTime = SPLASH_SCREEN_MS;
    }
    mSplashHandler.postDelayed(new Runnable() {
        @Override
        public void run() {
            Intent intent = new Intent(SplashScreenActivity.this, MainActivity.class);
            startActivity(intent);
            SplashScreenActivity.this.finish();
        }
    }, gapTime);
    // Save the time before the delay.
    mTimeBeforeDelay = System.currentTimeMillis();
}

@Override
protected void onPause() {
    super.onPause();
    mSplashHandler.removeCallbacksAndMessages(null);
}

Answer 4

供您参考，以下是Android - Splash Screen example的最佳示例。

Answer 5

您可以尝试以下代码：1

public class MainActivity extends Activity {
    private ImageView splashImageView;
    boolean splashloading = false;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        splashImageView = new ImageView(this);
        splashImageView.setScaleType(ScaleType.FIT_XY);
        splashImageView.setImageResource(R.drawable.ic_launcher);
        setContentView(splashImageView);
        // interesting music
        /**
         * Gets your sound file from res/raw
         */
        splashloading = true;
        Handler h = new Handler();
        h.postDelayed(new Runnable() {
            public void run() {
                splashloading = false;
                setContentView(R.layout.activity_main);
            }

        }, 3000);

    }

祝你好运！

Android：启动画面问题

5 个答案: