Android中获取系统通讯录联系人并解决Android6.0权限问题

标题 ## Android中获取系统通讯录联系人并显示在EditText

1.需求
一个EditText 点击button的时候转到系统通讯录，选中其中一个通讯录item返回当前界面且把
选中的联系人号码用户名显示在EditText 上。
2.示例
Android中获取系统通讯录联系人并解决Android6.0权限问题_第1张图片
3.代码
AddressList.java

public class AddressList extends CheckPermissionsActivity {    EditText text;    String username,usernumber;    @Override    public void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.address_list);        text = (EditText)findViewById(R.id.number);    }    public void click(View v){        startActivityForResult(new Intent(                Intent.ACTION_PICK,ContactsContract.Contacts.CONTENT_URI), 0);    }    @Override    protected void onActivityResult(int requestCode, int resultCode, Intent data) {        super.onActivityResult(requestCode, resultCode, data);        if (resultCode == Activity.RESULT_OK) {            ContentResolver reContentResolverol = getContentResolver();            Uri contactData = data.getData();            @SuppressWarnings("deprecation")            Cursor cursor = managedQuery(contactData, null, null, null, null);            cursor.moveToFirst();            username = cursor.getString(cursor.getColumnIndex(ContactsContract.Contacts.DISPLAY_NAME));            String contactId = cursor.getString(cursor.getColumnIndex(ContactsContract.Contacts._ID));            Cursor phone = reContentResolverol.query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI,                    null,                    ContactsContract.CommonDataKinds.Phone.CONTACT_ID + " = " + contactId,                    null,                    null);            while (phone.moveToNext()) {                usernumber = phone.getString(phone.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));                text.setText(usernumber+" ("+username+")");            }        }    }}

address_list.xml

<?xml version="1.0" encoding="utf-8"?>

在manifest 文件中已经添加了user-permission

可能出现错误提示：

Caused by: java.lang.SecurityException: Permission Denial: opening provider com.android.providers.contacts.ContactsProvider2 from ProcessRecord{49af1fb 14363:com.example.gszczepanski.eduandroid/u0a59} (pid=14363, uid=10059) requires android.permission.READ_CONTACTS or android.permission.WRITE_CONTACTS

错误提示的意思是：需要用户自己去添加对contacts 的授权，而不是让系统给授权，这都是android 6.0及以上的设备上才出现的问题，google 主要是处于安全的考虑，才添加的机制；
解决的方法是：弹出授权提示框，提醒用户授权；

故，增加一个CheckPermissionsActivity
代码如下：

/** * 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 * * @项目名称： AMapLocationDemo * @文件名称：PermissionsChecker.java * @类型名称：PermissionsChecker * @since 2.5.0 */public class CheckPermissionsActivity extends ActivityimplementsActivityCompat.OnRequestPermissionsResultCallback {/** * 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,Manifest.permission.DISABLE_KEYGUARD,Manifest.permission.RECEIVE_BOOT_COMPLETED,Manifest.permission.READ_CONTACTS,};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;@Overrideprotected void onResume() {super.onResume();if(isNeedCheck){checkPermissions(needPermissions);}}/** *  * @param needRequestPermissonList * @since 2.5.0 * */private void checkPermissions(String... permissions) {List needRequestPermissonList = findDeniedPermissions(permissions);if (null != needRequestPermissonList&& needRequestPermissonList.size() > 0) {ActivityCompat.requestPermissions(this,needRequestPermissonList.toArray(new String[needRequestPermissonList.size()]),PERMISSON_REQUESTCODE);}}/** * 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();for (String perm : permissions) {if (ContextCompat.checkSelfPermission(this,perm) != PackageManager.PERMISSION_GRANTED|| ActivityCompat.shouldShowRequestPermissionRationale(this, perm)) {needRequestPermissonList.add(perm);} }return needRequestPermissonList;}/** * 检测是否说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;}@Overridepublic 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() {@Overridepublic void onClick(DialogInterface dialog, int which) {finish();}});builder.setPositiveButton(R.string.setting,new DialogInterface.OnClickListener() {@Overridepublic 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);}@Overridepublic boolean onKeyDown(int keyCode, KeyEvent event) {if(keyCode == KeyEvent.KEYCODE_BACK){this.finish();return true;}return super.onKeyDown(keyCode, event);}}

只需在上面的权限数组中添加所需权限即可：
Manifest.permission.READ_CONTACTS,

修改strings.xml

    ScreenLocker2    提示    当前应用缺少必要权限。\n\n请点击\"设置\"-\"权限\"-打开所需权限。    设置    取消

最后让需要权限的Activity继承于CheckPermissionsActivity即可
运行：
Android中获取系统通讯录联系人并解决Android6.0权限问题_第2张图片

标题 ## Android中获取系统通讯录联系人并显示在EditText

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