package com.weikou.beibeivideo.util;
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import android.app.Activity;
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import android.app.AlertDialog;
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import android.content.DialogInterface;
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import android.content.Intent;
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import android.content.pm.PackageManager;
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import android.net.Uri;
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import android.os.Bundle;
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import android.provider.Settings;
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import androidx.annotation.NonNull;
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import androidx.annotation.Nullable;
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import androidx.core.app.ActivityCompat;
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import com.weikou.beibeivideo.R;
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/**
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* Created by weikou2015 on 2017/2/21.
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*/
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public class PermissionsActivity extends Activity {
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public static final int PERMISSIONS_GRANTED = 0; // 权限授权
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public static final int PERMISSIONS_DENIED = 1; // 权限拒绝
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private static final int PERMISSION_REQUEST_CODE = 0; // 系统权限管理页面的参数
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private static final String EXTRA_PERMISSIONS =
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"me.chunyu.clwang.permission.extra_permission"; // 权限参数
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private static final String PACKAGE_URL_SCHEME = "package:"; // 方案
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private PermissionsChecker mChecker; // 权限检测器
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private boolean isRequireCheck; // 是否需要系统权限检测
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// 启动当前权限页面的公开接口
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public static void startActivityForResult(Activity activity, int requestCode, String... permissions) {
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Intent intent = new Intent(activity, PermissionsActivity.class);
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intent.putExtra(EXTRA_PERMISSIONS, permissions);
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ActivityCompat.startActivityForResult(activity, intent, requestCode, null);
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}
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@Override
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protected void onCreate(@Nullable Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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if (getIntent() == null || !getIntent().hasExtra(EXTRA_PERMISSIONS)) {
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throw new RuntimeException("PermissionsActivity需要使用静态startActivityForResult方法启动!");
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}
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setContentView(R.layout.activity_permissions);
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mChecker = new PermissionsChecker(this);
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isRequireCheck = true;
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}
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@Override
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protected void onResume() {
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super.onResume();
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if (isRequireCheck) {
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String[] permissions = getPermissions();
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if (mChecker.lacksPermissions(permissions)) {
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requestPermissions(permissions); // 请求权限
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} else {
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allPermissionsGranted(); // 全部权限都已获取
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}
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} else {
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isRequireCheck = true;
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}
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}
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// 返回传递的权限参数
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private String[] getPermissions() {
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return getIntent().getStringArrayExtra(EXTRA_PERMISSIONS);
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}
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// 请求权限兼容低版本
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private void requestPermissions(String... permissions) {
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ActivityCompat.requestPermissions(this, permissions, PERMISSION_REQUEST_CODE);
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}
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// 全部权限均已获取
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private void allPermissionsGranted() {
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setResult(PERMISSIONS_GRANTED);
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finish();
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}
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/**
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* 用户权限处理,
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* 如果全部获取, 则直接过.
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* 如果权限缺失, 则提示Dialog.
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*
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* @param requestCode 请求码
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* @param permissions 权限
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* @param grantResults 结果
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*/
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@Override
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public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
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if (requestCode == PERMISSION_REQUEST_CODE && hasAllPermissionsGranted(grantResults)) {
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isRequireCheck = true;
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allPermissionsGranted();
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} else {
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isRequireCheck = false;
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showMissingPermissionDialog();
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}
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}
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// 含有全部的权限
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private boolean hasAllPermissionsGranted(@NonNull int[] grantResults) {
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for (int grantResult : grantResults) {
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if (grantResult == PackageManager.PERMISSION_DENIED) {
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return false;
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}
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}
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return true;
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}
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// 显示缺失权限提示
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private void showMissingPermissionDialog() {
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AlertDialog.Builder builder = new AlertDialog.Builder(PermissionsActivity.this);
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builder.setTitle(R.string.help);
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builder.setMessage(R.string.string_help_text);
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// 拒绝, 退出应用
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builder.setNegativeButton(R.string.quit, new DialogInterface.OnClickListener() {
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@Override
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public void onClick(DialogInterface dialog, int which) {
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setResult(PERMISSIONS_DENIED);
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finish();
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}
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});
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builder.setPositiveButton(R.string.settings, new DialogInterface.OnClickListener() {
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@Override
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public void onClick(DialogInterface dialog, int which) {
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startAppSettings();
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}
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});
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builder.show();
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}
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// 启动应用的设置
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private void startAppSettings() {
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Intent intent = new Intent(Settings.ACTION_APPLICATION_DETAILS_SETTINGS);
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intent.setData(Uri.parse(PACKAGE_URL_SCHEME + getPackageName()));
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startActivity(intent);
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}
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}
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