編輯:關於Android編程
MeloDev的這篇文章跟我的想法不謀而合,不一樣的地方是在於我加了個必要權限判斷,開發中我們會發現,有些權限是必須獲取到的,不然會影響到一部分的功能,如SD卡權限,當然,如果用戶不允許開通此類權限,APP理論上來說還是要允許用戶繼續使用的,但是我們要在很多地方加入權限判斷,很是麻煩,所以干脆流氓一點吧,添加一個必要權限判斷,如果必要權限被拒絕了,先彈窗,告知用戶去個人中心手動開啟,如果不然,直接退出APP....
我將運行時權限封裝到 BaseActivity 中,BaseActivity 繼承AppCompatActivity。
注解都寫得很詳細了,直接上代碼。
回調接口:
/** * Created by caihan on 2017/1/1. * 權限申請接口 */ public interface PermissionsResultListener { void onPermissionGranted(); void onPermissionDenied(); }
BaseActivity裡的權限代碼:
/** * Created by caihan on 2017/1/1. */ public abstract class BaseActivity extends AppCompatActivity{ private static final String TAG = "BaseActivity"; protected Context mContext; // For Android 6.0 private PermissionsResultListener mListener; //申請標記值 public static final int REQUEST_CODE_ASK_PERMISSIONS = 100; //手動開啟權限requestCode public static final int SETTINGS_REQUEST_CODE = 200; //拒絕權限後是否關閉界面或APP private boolean mNeedFinish = false; //界面傳遞過來的權限列表,用於二次申請 private ArrayListmPermissionsList = new ArrayList<>(); //必要全選,如果這幾個權限沒通過的話,就無法使用APP protected static final ArrayList FORCE_REQUIRE_PERMISSIONS = new ArrayList () { { add(Manifest.permission.INTERNET); add(Manifest.permission.READ_EXTERNAL_STORAGE); add(Manifest.permission.WRITE_EXTERNAL_STORAGE); add(Manifest.permission.ACCESS_FINE_LOCATION); add(Manifest.permission.ACCESS_COARSE_LOCATION); } }; @Override protected void onNewIntent(Intent intent) { super.onNewIntent(intent); if (intent != null) { setIntent(intent); mContext = this; } } @Override protected void onCreate(@Nullable Bundle savedInstanceState) { super.onCreate(savedInstanceState); //沒actionbar supportRequestWindowFeature(Window.FEATURE_NO_TITLE); //取消橫屏 setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT); //輸入法彈出的時候不頂起布局 //如果我們不設置"adjust..."的屬性,對於沒有滾動控件的布局來說,采用的是adjustPan方式, // 而對於有滾動控件的布局,則是采用的adjustResize方式。 getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_ADJUST_PAN | WindowManager.LayoutParams.SOFT_INPUT_STATE_HIDDEN); // getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE | // WindowManager.LayoutParams.SOFT_INPUT_STATE_HIDDEN); mContext = this; } /** * 權限允許或拒絕對話框 * * @param permissions 需要申請的權限 * @param needFinish 如果必須的權限沒有允許的話,是否需要finish當前 Activity * @param callback 回調對象 */ protected void requestPermission(final ArrayList permissions, final boolean needFinish, final PermissionsResultListener callback) { if (permissions == null || permissions.size() == 0) { return; } mNeedFinish = needFinish; mListener = callback; mPermissionsList = permissions; if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) { //獲取未通過的權限列表 ArrayList newPermissions = checkEachSelfPermission(permissions); if (newPermissions.size() > 0) {// 是否有未通過的權限 requestEachPermissions(newPermissions.toArray(new String[newPermissions.size()])); } else {// 權限已經都申請通過了 if (mListener != null) { mListener.onPermissionGranted(); } } } else { if (mListener != null) { mListener.onPermissionGranted(); } } } /** * 申請權限前判斷是否需要聲明 * * @param permissions */ private void requestEachPermissions(String[] permissions) { if (shouldShowRequestPermissionRationale(permissions)) {// 需要再次聲明 showRationaleDialog(permissions); } else { ActivityCompat.requestPermissions(BaseActivity.this, permissions, REQUEST_CODE_ASK_PERMISSIONS); } } /** * 彈出聲明的 Dialog * * @param permissions */ private void showRationaleDialog(final String[] permissions) { final AlertDialog.Builder builder = new AlertDialog.Builder(this); builder.setTitle("提示") .setMessage("為了應用可以正常使用,請您點擊確認申請權限。") .setPositiveButton("確認", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { ActivityCompat.requestPermissions(BaseActivity.this, permissions, REQUEST_CODE_ASK_PERMISSIONS); } }) .setNegativeButton("取消", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { dialog.dismiss(); if (mNeedFinish) finish(); } }) .setCancelable(false) .show(); } /** * 檢察每個權限是否申請 * * @param permissions * @return newPermissions.size > 0 表示有權限需要申請 */ private ArrayList checkEachSelfPermission(ArrayList permissions) { ArrayList newPermissions = new ArrayList (); for (String permission : permissions) { if (ContextCompat.checkSelfPermission(this, permission) != PackageManager.PERMISSION_GRANTED) { newPermissions.add(permission); } } return newPermissions; } /** * 再次申請權限時,是否需要聲明 * * @param permissions * @return */ private boolean shouldShowRequestPermissionRationale(String[] permissions) { for (String permission : permissions) { if (ActivityCompat.shouldShowRequestPermissionRationale(this, permission)) { return true; } } return false; } /** * 申請權限結果的回調 * * @param requestCode * @param permissions * @param grantResults */ @Override public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) { super.onRequestPermissionsResult(requestCode, permissions, grantResults); if (requestCode == REQUEST_CODE_ASK_PERMISSIONS && permissions != null) { // 獲取被拒絕的權限列表 ArrayList deniedPermissions = new ArrayList<>(); for (String permission : permissions) { if (ContextCompat.checkSelfPermission(this, permission) != PackageManager.PERMISSION_GRANTED) { deniedPermissions.add(permission); } } // 判斷被拒絕的權限中是否有包含必須具備的權限 ArrayList forceRequirePermissionsDenied = checkForceRequirePermissionDenied(FORCE_REQUIRE_PERMISSIONS, deniedPermissions); if (forceRequirePermissionsDenied != null && forceRequirePermissionsDenied.size() > 0) { // 必備的權限被拒絕, if (mNeedFinish) { showPermissionSettingDialog(); } else { if (mListener != null) { mListener.onPermissionDenied(); } } } else { // 不存在必備的權限被拒絕,可以進首頁 if (mListener != null) { mListener.onPermissionGranted(); } } } } /** * 檢查回調結果 * * @param grantResults * @return */ private boolean checkEachPermissionsGranted(int[] grantResults) { for (int result : grantResults) { if (result != PackageManager.PERMISSION_GRANTED) { return false; } } return true; } private ArrayList checkForceRequirePermissionDenied( ArrayList forceRequirePermissions, ArrayList deniedPermissions) { ArrayList forceRequirePermissionsDenied = new ArrayList<>(); if (forceRequirePermissions != null && forceRequirePermissions.size() > 0 && deniedPermissions != null && deniedPermissions.size() > 0) { for (String forceRequire : forceRequirePermissions) { if (deniedPermissions.contains(forceRequire)) { forceRequirePermissionsDenied.add(forceRequire); } } } return forceRequirePermissionsDenied; } /** * 手動開啟權限彈窗 */ private void showPermissionSettingDialog() { final AlertDialog.Builder builder = new AlertDialog.Builder(this); builder.setTitle("提示") .setMessage("必要的權限被拒絕") .setPositiveButton("去設置", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialogInterface, int i) { AppUtils.getAppDetailsSettings(BaseActivity.this, SETTINGS_REQUEST_CODE); } }) .setNegativeButton("取消", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialogInterface, int i) { dialogInterface.dismiss(); if (mNeedFinish) AppUtils.restart(BaseActivity.this); } }) .setCancelable(false) .show(); } @Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { super.onActivityResult(requestCode, resultCode, data); //如果需要跳轉系統設置頁後返回自動再次檢查和執行業務 如果不需要則不需要重寫onActivityResult if (requestCode == SETTINGS_REQUEST_CODE) { requestPermission(mPermissionsList, mNeedFinish, mListener); } } }
跳轉應用設置和關閉APP進程的代碼:
/** * 獲取App具體設置 * * @param context 上下文 */ public static void getAppDetailsSettings(Context context, int requestCode) { getAppDetailsSettings(context, context.getPackageName(), requestCode); } /** * 獲取App具體設置 * * @param context 上下文 * @param packageName 包名 */ public static void getAppDetailsSettings(Context context, String packageName, int requestCode) { if (StringUtils.isSpace(packageName)) return; ((AppCompatActivity) context).startActivityForResult( IntentUtils.getAppDetailsSettingsIntent(packageName), requestCode); } /** * 獲取App具體設置的意圖 * * @param packageName 包名 * @return intent */ public static Intent getAppDetailsSettingsIntent(String packageName) { Intent intent = new Intent("android.settings.APPLICATION_DETAILS_SETTINGS"); intent.setData(Uri.parse("package:" + packageName)); return intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); } /** * 通過任務管理器殺死進程 * 需添加權限 {@code} * * @param context */ public static void restart(Context context) { int currentVersion = android.os.Build.VERSION.SDK_INT; if (currentVersion > android.os.Build.VERSION_CODES.ECLAIR_MR1) { Intent startMain = new Intent(Intent.ACTION_MAIN); startMain.addCategory(Intent.CATEGORY_HOME); startMain.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); context.startActivity(startMain); System.exit(0); } else {// android2.1 ActivityManager am = (ActivityManager) context.getSystemService(ACTIVITY_SERVICE); am.restartPackage(context.getPackageName()); } }
界面上調用代碼:
這裡我直接傳了必要權限數列過去,因此如果有任何一個權限沒通過,都會退出APP,
如果你打算分場合請求權限的話,可以修改下我的代碼,必要和非必要權限都從界面傳遞過來就可以了。
requestPermission(FORCE_REQUIRE_PERMISSIONS, true, new PermissionsResultListener() { @Override public void onPermissionGranted() { ToastUtils.showShortToast("已申請權限"); } @Override public void onPermissionDenied() { ToastUtils.showShortToast("拒絕申請權限"); } });
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