Android高仿网易云音乐-启动界面实现和动态权限处理
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="//schemas.android.com/apk/res/android"
xmlns:tools="//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);
}