效果
实现分析
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。
布局
<?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" tools:context=".component.splash.activity.SplashActivity"> <!--banner--> <ImageView android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_centerHorizontal="true" android:layout_marginTop="120dp" android:src="@drawable/splash_banner" /> <!--logo--> <ImageView android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_above="@+id/copyright" android:layout_centerHorizontal="true" android:layout_marginBottom="20dp" android:src="@drawable/splash_logo" /> <!--版权--> <TextView android:id="@+id/copyright" android:textColor="@color/black80" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentBottom="true" android:layout_centerHorizontal="true" android:layout_marginBottom="30dp" android:text="@string/copyright" /> </RelativeLayout> 是否显示用户协议对话框
if (DefaultPreferenceUtil.getInstance(getHostActivity()).isAcceptTermsServiceAgreement()) { //已经同意了用户协议 checkPermission(); } else { showTermsServiceAgreementDialog(); } 动态处理权限
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); } /** * 权限授权了就会调用该方法 * 请求相机权限目的是扫描二维码，拍照 */ @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(); } /** * 显示权限授权对话框 * 目的是提示用户 */ @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(); } /** * 拒绝了权限调用 */ @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(); } /** * 再次获取权限的提示 */ @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(); } /** * 授权后回调 * * @param requestCode * @param permissions * @param grantResults */ @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); } 界面跳转
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); } 
