android - 权限回调和授予权限之间的明显延迟

问题描述

所以，这是一个具有引导接收器的棒棒糖应用程序 (5.0)。引导接收器启动一个活动 (SplashActivity.class)。SplashActivity 的目的是在启动 MainActivity.class 之前获得所有必要的权限。

public class SplashActivity extends Activity {

private static boolean bPermission = false;
private static final int MY_PERMISSIONS_REQUEST = 100;
private static final String[] allRequestedPermissions = new String[] {
        Manifest.permission.READ_CONTACTS,
        Manifest.permission.SEND_SMS,
        Manifest.permission.CALL_PHONE
};

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    if(getIntent().hasExtra("PERMISSION_FOR_SERVICE")) {
        bPermission = true;
    }
    if (!checkAllRequestedPermissions()) {
        ActivityCompat.requestPermissions(this, allRequestedPermissions, MY_PERMISSIONS_REQUEST);
    }
    else {
        startMainActivity();
    }
}

private boolean checkAllRequestedPermissions() {
    for (String permission : allRequestedPermissions) {
        if (ContextCompat.checkSelfPermission(this, permission) != PackageManager.PERMISSION_GRANTED) {
            return false;
        }
    }
    return true;
}

private boolean isServiceRunning(Class<?> serviceClass) {
    ActivityManager manager = (ActivityManager) getSystemService(Context.ACTIVITY_SERVICE);
    for (ActivityManager.RunningServiceInfo service : manager.getRunningServices(Integer.MAX_VALUE)) {
        if (serviceClass.getName().equals(service.service.getClassName())) {
            return true;
        }
    }
    return false;
}

@Override
public void onRequestPermissionsResult(int requestCode,
                                       String permissions[], int[] grantResults) {
    switch (requestCode) {
        case MY_PERMISSIONS_REQUEST: {
            if (checkAllRequestedPermissions()) {
                    startMainActivity();
            }
            else {
                finish();
            }
            return;
        }

        // other 'case' lines to check for other
        // permissions this app might request
    }
}

private void startMainActivity() {
    Intent intent = new Intent(this, MainActivity.class);
    intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK | IntentCompat.FLAG_ACTIVITY_CLEAR_TASK);
    if(bPermission) {
        intent.putExtra("PERMISSION_FOR_SERVICE","_");
    }
    startActivity(intent);
}

}

在所有权限检查和请求之后（如果您滚动到底部）最终发生的是它启动 MainActivity。

问题是我宁愿它在 bPermission == true 的情况下不启动 MainActivity。如果 bPermission == true，则更喜欢以下行为：

private void startMainActivity() {
    if(bPermission) {
        startService(new Intent(this, SchedulerService.class));
        finish();
    }
    else {
        Intent intent = new Intent(this, MainActivity.class);
        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK | IntentCompat.FLAG_ACTIVITY_CLEAR_TASK);

        intent.putExtra("PERMISSION_FOR_SERVICE", "_");
        startActivity(intent);
    }

}

但是，这会使应用程序崩溃。有什么想法可能是错的吗？提前谢谢了

已解决：我的服务有一个不知道的依赖项。在启动服务修复问题之前初始化依赖关系！谢谢@mike m.!!

标签： androidandroid-5.0-lollipop

android - 权限回调和授予权限之间的明显延迟

问题描述

解决方案

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