高德地图Demo中，BaseActivity检查权限的原理是怎样的？

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本文共计1075个文字，预计阅读时间需要5分钟。

高德地图Demo中，BaseActivity检查权限的原理是怎样的？

高德地图Demo中，专门用于检查权限的BaseActivity继承自Activity，实现Android 6.0的运行时权限检测。需要运行时权限检测的Activity可以继承此类。类创建时间：2016年5月27日下午3:00。

高德地图Demo中，BaseActivity检查权限的原理是怎样的？

高德地图Demo中专门用来检查权限的BaseActivity

/** * 继承了Activity，实现Android6.0的运行时权限检测 * 需要进行运行时权限检测的Activity可以继承这个类 * * @创建时间：2016年5月27日 下午3:01:31 * @项目名称： AMapLocationDemo * @author hongming.wang * @文件名称：PermissionsChecker.java * @类型名称：PermissionsChecker * @since 2.5.0 */ public class CheckPermissionsActivity extends Activity { /** * 需要进行检测的权限数组 */ protected String[] needPermissions = { Manifest.permission.ACCESS_COARSE_LOCATION, Manifest.permission.ACCESS_FINE_LOCATION, Manifest.permission.WRITE_EXTERNAL_STORAGE, Manifest.permission.READ_EXTERNAL_STORAGE, Manifest.permission.READ_PHONE_STATE }; private static final int PERMISSON_REQUESTCODE = 0; /** * 判断是否需要检测，防止不停的弹框 */ private boolean isNeedCheck = true; @Override protected void onResume() { super.onResume(); if (Build.VERSION.SDK_INT >= 23 && getApplicationInfo().targetSdkVersion >= 23) { if (isNeedCheck) { checkPermissions(needPermissions); } } } /** * * @param permissions * @since 2.5.0 * */ private void checkPermissions(String... permissions) { try { if (Build.VERSION.SDK_INT >= 23 && getApplicationInfo().targetSdkVersion >= 23) { List needRequestPermissonList = findDeniedPermissions(permissions); if (null != needRequestPermissonList && needRequestPermissonList.size() > 0) { String[] array = needRequestPermissonList.toArray(new String[needRequestPermissonList.size()]); Method method = getClass().getMethod("requestPermissions", new Class[]{String[].class, int.class}); method.invoke(this, array, PERMISSON_REQUESTCODE); } } } catch (Throwable e) { } } /** * 获取权限集中需要申请权限的列表 * * @param permissions * @return * @since 2.5.0 * */ private List findDeniedPermissions(String[] permissions) { List needRequestPermissonList = new ArrayList (); if (Build.VERSION.SDK_INT >= 23 && getApplicationInfo().targetSdkVersion >= 23){ try { for (String perm : permissions) { Method checkSelfMethod = getClass().getMethod("checkSelfPermission", String.class); Method shouldShowRequestPermissionRationaleMethod = getClass().getMethod("shouldShowRequestPermissionRationale", String.class); if ((Integer)checkSelfMethod.invoke(this, perm) != PackageManager.PERMISSION_GRANTED || (Boolean)shouldShowRequestPermissionRationaleMethod.invoke(this, perm)) { needRequestPermissonList.add(perm); } } } catch (Throwable e) { } } return needRequestPermissonList; } /** * 检测是否所有的权限都已经授权 * @param grantResults * @return * @since 2.5.0 * */ private boolean verifyPermissions(int[] grantResults) { for (int result : grantResults) { if (result != PackageManager.PERMISSION_GRANTED) { return false; } } return true; } @TargetApi(23) public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] paramArrayOfInt) { if (requestCode == PERMISSON_REQUESTCODE) { if (!verifyPermissions(paramArrayOfInt)) { showMissingPermissionDialog(); isNeedCheck = false; } } } /** * 显示提示信息 * * @since 2.5.0 * */ private void showMissingPermissionDialog() { AlertDialog.Builder builder = new AlertDialog.Builder(this); builder.setTitle(R.string.notifyTitle); builder.setMessage(R.string.notifyMsg); // 拒绝, 退出应用 builder.setNegativeButton(R.string.cancel, new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { finish(); } }); builder.setPositiveButton(R.string.setting, new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { startAppSettings(); } }); builder.setCancelable(false); builder.show(); } /** * 启动应用的设置 * * @since 2.5.0 * */ private void startAppSettings() { Intent intent = new Intent( Settings.ACTION_APPLICATION_DETAILS_SETTINGS); intent.setData(Uri.parse("package:" + getPackageName())); startActivity(intent); } @Override public boolean onKeyDown(int keyCode, KeyEvent event) { if(keyCode == KeyEvent.KEYCODE_BACK){ this.finish(); return true; } return super.onKeyDown(keyCode, event); } } CheckPermissionsActivity.java

/** * */ package com.amap.location.demo; import java.lang.reflect.Method; import java.util.ArrayList; import java.util.List; import android.Manifest; import android.annotation.TargetApi; import android.app.Activity; import android.app.AlertDialog; import android.content.DialogInterface; import android.content.Intent; import android.content.pm.PackageManager; import android.net.Uri; import android.os.Build; import android.provider.Settings; import android.view.KeyEvent; /** * 继承了Activity，实现Android6.0的运行时权限检测 * 需要进行运行时权限检测的Activity可以继承这个类 * * @创建时间：2016年5月27日 下午3:01:31 * @项目名称： AMapLocationDemo * @author hongming.wang * @文件名称：PermissionsChecker.java * @类型名称：PermissionsChecker * @since 2.5.0 */ public class CheckPermissionsActivity extends Activity { /** * 需要进行检测的权限数组 */ protected String[] needPermissions = { Manifest.permission.ACCESS_COARSE_LOCATION, Manifest.permission.ACCESS_FINE_LOCATION, Manifest.permission.WRITE_EXTERNAL_STORAGE, Manifest.permission.READ_EXTERNAL_STORAGE, Manifest.permission.READ_PHONE_STATE }; private static final int PERMISSON_REQUESTCODE = 0; /** * 判断是否需要检测，防止不停的弹框 */ private boolean isNeedCheck = true; @Override protected void onResume() { super.onResume(); if (Build.VERSION.SDK_INT >= 23 && getApplicationInfo().targetSdkVersion >= 23) { if (isNeedCheck) { checkPermissions(needPermissions); } } } /** * * @param permissions * @since 2.5.0 * */ private void checkPermissions(String... permissions) { try { if (Build.VERSION.SDK_INT >= 23 && getApplicationInfo().targetSdkVersion >= 23) { List needRequestPermissonList = findDeniedPermissions(permissions); if (null != needRequestPermissonList && needRequestPermissonList.size() > 0) { String[] array = needRequestPermissonList.toArray(new String[needRequestPermissonList.size()]); Method method = getClass().getMethod("requestPermissions", new Class[]{String[].class, int.class}); method.invoke(this, array, PERMISSON_REQUESTCODE); } } } catch (Throwable e) { } } /** * 获取权限集中需要申请权限的列表 * * @param permissions * @return * @since 2.5.0 * */ private List findDeniedPermissions(String[] permissions) { List needRequestPermissonList = new ArrayList (); if (Build.VERSION.SDK_INT >= 23 && getApplicationInfo().targetSdkVersion >= 23){ try { for (String perm : permissions) { Method checkSelfMethod = getClass().getMethod("checkSelfPermission", String.class); Method shouldShowRequestPermissionRationaleMethod = getClass().getMethod("shouldShowRequestPermissionRationale", String.class); if ((Integer)checkSelfMethod.invoke(this, perm) != PackageManager.PERMISSION_GRANTED || (Boolean)shouldShowRequestPermissionRationaleMethod.invoke(this, perm)) { needRequestPermissonList.add(perm); } } } catch (Throwable e) { } } return needRequestPermissonList; } /** * 检测是否所有的权限都已经授权 * @param grantResults * @return * @since 2.5.0 * */ private boolean verifyPermissions(int[] grantResults) { for (int result : grantResults) { if (result != PackageManager.PERMISSION_GRANTED) { return false; } } return true; } @TargetApi(23) public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] paramArrayOfInt) { if (requestCode == PERMISSON_REQUESTCODE) { if (!verifyPermissions(paramArrayOfInt)) { showMissingPermissionDialog(); isNeedCheck = false; } } } /** * 显示提示信息 * * @since 2.5.0 * */ private void showMissingPermissionDialog() { AlertDialog.Builder builder = new AlertDialog.Builder(this); builder.setTitle(R.string.notifyTitle); builder.setMessage(R.string.notifyMsg); // 拒绝, 退出应用 builder.setNegativeButton(R.string.cancel, new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { finish(); } }); builder.setPositiveButton(R.string.setting, new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { startAppSettings(); } }); builder.setCancelable(false); builder.show(); } /** * 启动应用的设置 * * @since 2.5.0 * */ private void startAppSettings() { Intent intent = new Intent( Settings.ACTION_APPLICATION_DETAILS_SETTINGS); intent.setData(Uri.parse("package:" + getPackageName())); startActivity(intent); } @Override public boolean onKeyDown(int keyCode, KeyEvent event) { if(keyCode == KeyEvent.KEYCODE_BACK){ this.finish(); return true; } return super.onKeyDown(keyCode, event); } }

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本文共计1075个文字，预计阅读时间需要5分钟。

高德地图Demo中，BaseActivity检查权限的原理是怎样的？

高德地图Demo中，专门用于检查权限的BaseActivity继承自Activity，实现Android 6.0的运行时权限检测。需要运行时权限检测的Activity可以继承此类。类创建时间：2016年5月27日下午3:00。

高德地图Demo中，BaseActivity检查权限的原理是怎样的？

高德地图Demo中专门用来检查权限的BaseActivity

/** * 继承了Activity，实现Android6.0的运行时权限检测 * 需要进行运行时权限检测的Activity可以继承这个类 * * @创建时间：2016年5月27日 下午3:01:31 * @项目名称： AMapLocationDemo * @author hongming.wang * @文件名称：PermissionsChecker.java * @类型名称：PermissionsChecker * @since 2.5.0 */ public class CheckPermissionsActivity extends Activity { /** * 需要进行检测的权限数组 */ protected String[] needPermissions = { Manifest.permission.ACCESS_COARSE_LOCATION, Manifest.permission.ACCESS_FINE_LOCATION, Manifest.permission.WRITE_EXTERNAL_STORAGE, Manifest.permission.READ_EXTERNAL_STORAGE, Manifest.permission.READ_PHONE_STATE }; private static final int PERMISSON_REQUESTCODE = 0; /** * 判断是否需要检测，防止不停的弹框 */ private boolean isNeedCheck = true; @Override protected void onResume() { super.onResume(); if (Build.VERSION.SDK_INT >= 23 && getApplicationInfo().targetSdkVersion >= 23) { if (isNeedCheck) { checkPermissions(needPermissions); } } } /** * * @param permissions * @since 2.5.0 * */ private void checkPermissions(String... permissions) { try { if (Build.VERSION.SDK_INT >= 23 && getApplicationInfo().targetSdkVersion >= 23) { List needRequestPermissonList = findDeniedPermissions(permissions); if (null != needRequestPermissonList && needRequestPermissonList.size() > 0) { String[] array = needRequestPermissonList.toArray(new String[needRequestPermissonList.size()]); Method method = getClass().getMethod("requestPermissions", new Class[]{String[].class, int.class}); method.invoke(this, array, PERMISSON_REQUESTCODE); } } } catch (Throwable e) { } } /** * 获取权限集中需要申请权限的列表 * * @param permissions * @return * @since 2.5.0 * */ private List findDeniedPermissions(String[] permissions) { List needRequestPermissonList = new ArrayList (); if (Build.VERSION.SDK_INT >= 23 && getApplicationInfo().targetSdkVersion >= 23){ try { for (String perm : permissions) { Method checkSelfMethod = getClass().getMethod("checkSelfPermission", String.class); Method shouldShowRequestPermissionRationaleMethod = getClass().getMethod("shouldShowRequestPermissionRationale", String.class); if ((Integer)checkSelfMethod.invoke(this, perm) != PackageManager.PERMISSION_GRANTED || (Boolean)shouldShowRequestPermissionRationaleMethod.invoke(this, perm)) { needRequestPermissonList.add(perm); } } } catch (Throwable e) { } } return needRequestPermissonList; } /** * 检测是否所有的权限都已经授权 * @param grantResults * @return * @since 2.5.0 * */ private boolean verifyPermissions(int[] grantResults) { for (int result : grantResults) { if (result != PackageManager.PERMISSION_GRANTED) { return false; } } return true; } @TargetApi(23) public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] paramArrayOfInt) { if (requestCode == PERMISSON_REQUESTCODE) { if (!verifyPermissions(paramArrayOfInt)) { showMissingPermissionDialog(); isNeedCheck = false; } } } /** * 显示提示信息 * * @since 2.5.0 * */ private void showMissingPermissionDialog() { AlertDialog.Builder builder = new AlertDialog.Builder(this); builder.setTitle(R.string.notifyTitle); builder.setMessage(R.string.notifyMsg); // 拒绝, 退出应用 builder.setNegativeButton(R.string.cancel, new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { finish(); } }); builder.setPositiveButton(R.string.setting, new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { startAppSettings(); } }); builder.setCancelable(false); builder.show(); } /** * 启动应用的设置 * * @since 2.5.0 * */ private void startAppSettings() { Intent intent = new Intent( Settings.ACTION_APPLICATION_DETAILS_SETTINGS); intent.setData(Uri.parse("package:" + getPackageName())); startActivity(intent); } @Override public boolean onKeyDown(int keyCode, KeyEvent event) { if(keyCode == KeyEvent.KEYCODE_BACK){ this.finish(); return true; } return super.onKeyDown(keyCode, event); } } CheckPermissionsActivity.java

/** * */ package com.amap.location.demo; import java.lang.reflect.Method; import java.util.ArrayList; import java.util.List; import android.Manifest; import android.annotation.TargetApi; import android.app.Activity; import android.app.AlertDialog; import android.content.DialogInterface; import android.content.Intent; import android.content.pm.PackageManager; import android.net.Uri; import android.os.Build; import android.provider.Settings; import android.view.KeyEvent; /** * 继承了Activity，实现Android6.0的运行时权限检测 * 需要进行运行时权限检测的Activity可以继承这个类 * * @创建时间：2016年5月27日 下午3:01:31 * @项目名称： AMapLocationDemo * @author hongming.wang * @文件名称：PermissionsChecker.java * @类型名称：PermissionsChecker * @since 2.5.0 */ public class CheckPermissionsActivity extends Activity { /** * 需要进行检测的权限数组 */ protected String[] needPermissions = { Manifest.permission.ACCESS_COARSE_LOCATION, Manifest.permission.ACCESS_FINE_LOCATION, Manifest.permission.WRITE_EXTERNAL_STORAGE, Manifest.permission.READ_EXTERNAL_STORAGE, Manifest.permission.READ_PHONE_STATE }; private static final int PERMISSON_REQUESTCODE = 0; /** * 判断是否需要检测，防止不停的弹框 */ private boolean isNeedCheck = true; @Override protected void onResume() { super.onResume(); if (Build.VERSION.SDK_INT >= 23 && getApplicationInfo().targetSdkVersion >= 23) { if (isNeedCheck) { checkPermissions(needPermissions); } } } /** * * @param permissions * @since 2.5.0 * */ private void checkPermissions(String... permissions) { try { if (Build.VERSION.SDK_INT >= 23 && getApplicationInfo().targetSdkVersion >= 23) { List needRequestPermissonList = findDeniedPermissions(permissions); if (null != needRequestPermissonList && needRequestPermissonList.size() > 0) { String[] array = needRequestPermissonList.toArray(new String[needRequestPermissonList.size()]); Method method = getClass().getMethod("requestPermissions", new Class[]{String[].class, int.class}); method.invoke(this, array, PERMISSON_REQUESTCODE); } } } catch (Throwable e) { } } /** * 获取权限集中需要申请权限的列表 * * @param permissions * @return * @since 2.5.0 * */ private List findDeniedPermissions(String[] permissions) { List needRequestPermissonList = new ArrayList (); if (Build.VERSION.SDK_INT >= 23 && getApplicationInfo().targetSdkVersion >= 23){ try { for (String perm : permissions) { Method checkSelfMethod = getClass().getMethod("checkSelfPermission", String.class); Method shouldShowRequestPermissionRationaleMethod = getClass().getMethod("shouldShowRequestPermissionRationale", String.class); if ((Integer)checkSelfMethod.invoke(this, perm) != PackageManager.PERMISSION_GRANTED || (Boolean)shouldShowRequestPermissionRationaleMethod.invoke(this, perm)) { needRequestPermissonList.add(perm); } } } catch (Throwable e) { } } return needRequestPermissonList; } /** * 检测是否所有的权限都已经授权 * @param grantResults * @return * @since 2.5.0 * */ private boolean verifyPermissions(int[] grantResults) { for (int result : grantResults) { if (result != PackageManager.PERMISSION_GRANTED) { return false; } } return true; } @TargetApi(23) public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] paramArrayOfInt) { if (requestCode == PERMISSON_REQUESTCODE) { if (!verifyPermissions(paramArrayOfInt)) { showMissingPermissionDialog(); isNeedCheck = false; } } } /** * 显示提示信息 * * @since 2.5.0 * */ private void showMissingPermissionDialog() { AlertDialog.Builder builder = new AlertDialog.Builder(this); builder.setTitle(R.string.notifyTitle); builder.setMessage(R.string.notifyMsg); // 拒绝, 退出应用 builder.setNegativeButton(R.string.cancel, new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { finish(); } }); builder.setPositiveButton(R.string.setting, new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { startAppSettings(); } }); builder.setCancelable(false); builder.show(); } /** * 启动应用的设置 * * @since 2.5.0 * */ private void startAppSettings() { Intent intent = new Intent( Settings.ACTION_APPLICATION_DETAILS_SETTINGS); intent.setData(Uri.parse("package:" + getPackageName())); startActivity(intent); } @Override public boolean onKeyDown(int keyCode, KeyEvent event) { if(keyCode == KeyEvent.KEYCODE_BACK){ this.finish(); return true; } return super.onKeyDown(keyCode, event); } }