Android開發6.0許可權的封裝
import android.content.Intent;
import android.content.pm.PackageManager;
import android.net.Uri;
import android.os.Build;
import android.provider.Settings;
import android.support.annotation.NonNull;
import android.support.v4.app.ActivityCompat;
import android.support.v4.content.ContextCompat;
import android.support.v7.app.AlertDialog;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import java.util.ArrayList;
import java.util.List;
/**
* Created by changquan on 2016-11-16.
*/
public class MPermissionsActivity extends AppCompatActivity {
private final String TAG = "MPermissions";
private int REQUEST_CODE_PERMISSION = 0x00099;
/**
* 請求許可權
*
* @param permissions 請求的許可權
* @param requestCode 請求許可權的請求碼
*/
public void requestPermission(String[] permissions, int requestCode) {
this.REQUEST_CODE_PERMISSION = requestCode;
if (checkPermissions(permissions)) {
permissionSuccess(REQUEST_CODE_PERMISSION);
} else {
List<String> needPermissions = getDeniedPermissions(permissions);
ActivityCompat.requestPermissions(this, needPermissions.toArray(new String[needPermissions.size()]), REQUEST_CODE_PERMISSION);
}
}
/**
* 檢測所有的許可權是否都已授權
*
* @param permissions
* @return
*/
private boolean checkPermissions(String[] permissions) {
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.M) {
return true;
}
for (String permission : permissions) {
if (ContextCompat.checkSelfPermission(this, permission) !=
PackageManager.PERMISSION_GRANTED) {
return false;
}
}
return true;
}
/**
* 獲取許可權集中需要申請許可權的列表
*
* @param permissions
* @return
*/
private List<String> getDeniedPermissions(String[] permissions) {
List<String> needRequestPermissionList = new ArrayList<>();
for (String permission : permissions) {
if (ContextCompat.checkSelfPermission(this, permission) !=
PackageManager.PERMISSION_GRANTED ||
ActivityCompat.shouldShowRequestPermissionRationale(this, permission)) {
needRequestPermissionList.add(permission);
}
}
return needRequestPermissionList;
}
/**
* 系統請求許可權回撥
*
* @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_PERMISSION) {
if (verifyPermissions(grantResults)) {
permissionSuccess(REQUEST_CODE_PERMISSION);
} else {
permissionFail(REQUEST_CODE_PERMISSION);
showTipsDialog();
}
}
}
/**
* 確認所有的許可權是否都已授權
*
* @param grantResults
* @return
*/
private boolean verifyPermissions(int[] grantResults) {
for (int grantResult : grantResults) {
if (grantResult != PackageManager.PERMISSION_GRANTED) {
return false;
}
}
return true;
}
/**
* 顯示提示對話方塊
*/
private void showTipsDialog() {
new AlertDialog.Builder(this)
.setTitle("提示資訊")
.setMessage("當前應用缺少必要許可權,該功能暫時無法使用。如若需要,請單擊【確定】按鈕前往設定中心進行許可權授權。")
.setNegativeButton("取消", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
}
})
.setPositiveButton("確定", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
startAppSettings();
}
}).show();
}
/**
* 啟動當前應用設定頁面
*/
private void startAppSettings() {
Intent intent = new Intent(Settings.ACTION_APPLICATION_DETAILS_SETTINGS);
intent.setData(Uri.parse("package:" + getPackageName()));
startActivity(intent);
}
/**
* 獲取許可權成功
*
* @param requestCode
*/
public void permissionSuccess(int requestCode) {
Log.d(TAG, "獲取許可權成功=" + requestCode);
}
/**
* 許可權獲取失敗
* @param requestCode
*/
public void permissionFail(int requestCode) {
Log.d(TAG, "獲取許可權失敗=" + requestCode);
}
}