Android高仿网易云音乐-启动界面实现和动态权限处理

基本上没有什么难点，就是布局，然后显示用户协议对话框，动态处理权限，判断是否显示引导界面，是否显示广告界面等。

if (DefaultPreferenceUtil.getInstance(getHostActivity()).isAcceptTermsServiceAgreement()) {
    //已经同意了用户协议

    checkPermission();
} else {
    showTermsServiceAgreementDialog();
}

现在做Android必须要动态处理权限，这里使用第三方框架，推荐再用到的时候才动态请求权限，写法和现在一样。

private void checkPermission() {
    //让动态框架检查是否授权了

    //如果不使用框架就使用系统提供的API检查
    //它内部也是使用系统API检查
    //只是使用框架就更简单了
    SplashActivityPermissionsDispatcher.onPermissionGrantedWithPermissionCheck(this);
}


@NeedsPermission({
        Manifest.permission.CAMERA,
        Manifest.permission.READ_EXTERNAL_STORAGE,
        Manifest.permission.WRITE_EXTERNAL_STORAGE,
        Manifest.permission.ACCESS_COARSE_LOCATION,
        Manifest.permission.ACCESS_FINE_LOCATION
})
void onPermissionGranted() {
    //如果有权限就进入下一步
    prepareNext();
}


@OnShowRationale({
        Manifest.permission.CAMERA,
        Manifest.permission.READ_EXTERNAL_STORAGE,
        Manifest.permission.WRITE_EXTERNAL_STORAGE,
        Manifest.permission.ACCESS_COARSE_LOCATION,
        Manifest.permission.ACCESS_FINE_LOCATION
})
void showRequestPermission(PermissionRequest request) {
    new AlertDialog.Builder(getHostActivity())
            .setMessage(R.string.permission_hint)
            .setPositiveButton(R.string.allow, (dialog, which) -> request.proceed())
            .setNegativeButton(R.string.deny, (dialog, which) -> request.cancel()).show();
}


@OnPermissionDenied({
        Manifest.permission.CAMERA,
        Manifest.permission.READ_EXTERNAL_STORAGE,
        Manifest.permission.WRITE_EXTERNAL_STORAGE,
        Manifest.permission.ACCESS_COARSE_LOCATION,
        Manifest.permission.ACCESS_FINE_LOCATION
})
void showDenied() {
    //退出应用
    finish();
}


@OnNeverAskAgain({
        Manifest.permission.CAMERA,
        Manifest.permission.READ_EXTERNAL_STORAGE,
        Manifest.permission.WRITE_EXTERNAL_STORAGE,
        Manifest.permission.ACCESS_COARSE_LOCATION,
        Manifest.permission.ACCESS_FINE_LOCATION
})
void showNeverAsk() {
    //继续请求权限
    checkPermission();
}



@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
    super.onRequestPermissionsResult(requestCode, permissions, grantResults);
    //将授权结果传递到框架
    SplashActivityPermissionsDispatcher.onRequestPermissionsResult(this, requestCode, grantResults);
}

private void postNext() {
    binding.copyright.postDelayed(new Runnable() {
        @Override
        public void run() {
            next();
        }
    }, Config.SPLASH_DEFAULT_DELAY_TIME);

}

private void next() {
    //获取意图的目的是，因为启动该界面的时候，可能携带一些数据
    //需要在主界面处理
    Intent intent = new Intent();

    Intent oldIntent = getIntent();
    IntentUtil.cloneIntent(oldIntent, intent);

//        if (sp.isLogin()) {
//            intent.setClass(getHostActivity(), AdActivity.class);
//        } else {
    intent.setClass(getHostActivity(), MainActivity.class);
//        }

    startActivity(intent);

    //关闭当前界面
    finish();

    //禁用启动动画
    overridePendingTransition(0, 0);
}