在视图之间实现三角形（如Instagram登录屏幕上的那个）

Question

我想知道是否有一种简单/优雅的方式来实现视图之间的分类（就像你在Instagram登录界面上看到的那样）。请参阅附件截图。

Answer 1

使用private void startServiceDiscovery() { mWifiP2pManager.removeServiceRequest(mWifiP2pChannel, mWifiP2pServiceRequest, new WifiP2pManager.ActionListener() { @Override public void onSuccess() { mWifiP2pManager.addServiceRequest(mWifiP2pChannel, mWifiP2pServiceRequest, new WifiP2pManager.ActionListener() { @Override public void onSuccess() { mWifiP2pManager.discoverServices(mWifiP2pChannel, new WifiP2pManager.ActionListener() { @Override public void onSuccess() { //service discovery started mServiceDiscoveringHandler.postDelayed( mServiceDiscoveringRunnable, SERVICE_DISCOVERING_INTERVAL); } @Override public void onFailure(int error) { // react to failure of starting service discovery } }); } @Override public void onFailure(int error) { // react to failure of adding service request } }); } @Override public void onFailure(int reason) { // react to failure of removing service request } }); } 设置为mServiceDiscoveringRunnable为白色。使用

添加45°旋转

private Runnable mServiceDiscoveringRunnable = new Runnable() {
    @Override
    public void run() {
        startServiceDiscovery();
    }
};