Android6.0 动态权限封装(代码非原创)

import android.content.DialogInterface;
import android.content.pm.PackageManager;
import android.os.Build;
import android.support.annotation.NonNull;
import android.support.v4.app.ActivityCompat;
import android.support.v7.app.AlertDialog;
import android.support.v7.app.AppCompatActivity;
import android.widget.Toast;

/**
* @author Admin
* @version $Rev$
* @des ${TODO}
* @updateAuthor $Author$
* @updateDes ${TODO}
*/
public class BaseActivity extends AppCompatActivity {
//**************** Android M Permission (Android 6.0权限控制代码封装)
private int permissionRequestCode = 88;
private PermissionCallback permissionRunnable;

public interface PermissionCallback {
void hasPermission();

void noPermission();
}

/**
* Android M运行时权限请求封装
*
* @param permissionDes 权限描述
* @param runnable      请求权限回调
* @param permissions   请求的权限（数组类型），直接从Manifest中读取相应的值，比如Manifest.permission.WRITE_CONTACTS
*/
public void performCodeWithPermission(@NonNull String permissionDes, PermissionCallback runnable, @NonNull String... permissions) {
if (permissions == null || permissions.length == 0)
return;
//        this.permissionrequestCode = requestCode;
this.permissionRunnable = runnable;
if ((Build.VERSION.SDK_INT < Build.VERSION_CODES.M) || checkPermissionGranted(permissions)) {
if (permissionRunnable != null) {
permissionRunnable.hasPermission();
permissionRunnable = null;
}
} else {
//permission has not been granted.
requestPermission(permissionDes, permissionRequestCode, permissions);
}

}

private boolean checkPermissionGranted(String[] permissions) {
boolean flag = true;
for (String p : permissions) {
if (ActivityCompat.checkSelfPermission(this, p) != PackageManager.PERMISSION_GRANTED) {
flag = false;
break;
}
}
return flag;
}

private void requestPermission(String permissionDes, final int requestCode, final String[] permissions) {
if (shouldShowRequestPermissionRationale(permissions)) {
/*1. 第一次请求权限时，用户拒绝了，下一次：shouldShowRequestPermissionRationale()  返回 true，应该显示一些为什么需要这个权限的说明
2.第二次请求权限时，用户拒绝了，并选择了“不在提醒”的选项时：shouldShowRequestPermissionRationale()  返回 false
3. 设备的策略禁止当前应用获取这个权限的授权：shouldShowRequestPermissionRationale()  返回 false*/
// Provide an additional rationale to the user if the permission was not granted
// and the user would benefit from additional context for the use of the permission.
// For example, if the request has been denied previously.

//            Snackbar.make(getWindow().getDecorView(), requestName,
//                    Snackbar.LENGTH_INDEFINITE)
//                    .setAction(R.string.common_ok, new View.OnClickListener() {
//                        @Override
//                        public void onClick(View view) {
//                            ActivityCompat.requestPermissions(BaseAppCompatActivity.this,
//                                    permissions,
//                                    requestCode);
//                        }
//                    })
//                    .show();
//如果用户之前拒绝过此权限，再提示一次准备授权相关权限
new AlertDialog.Builder(this)
.setTitle("提示")
.setMessage(permissionDes)
.setPositiveButton("授权", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
ActivityCompat.requestPermissions(BaseActivity.this, permissions, requestCode);
}
}).show();

} else {
// Contact permissions have not been granted yet. Request them directly.
ActivityCompat.requestPermissions(BaseActivity.this, permissions, requestCode);
}
}

private boolean shouldShowRequestPermissionRationale(String[] permissions) {
boolean flag = false;
for (String p : permissions) {
if (ActivityCompat.shouldShowRequestPermissionRationale(this, p)) {
flag = true;
break;
}
}
return flag;
}

/**
* Callback received when a permissions request has been completed.
*/
@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions,
@NonNull int[] grantResults) {
if (requestCode == permissionRequestCode) {
if (verifyPermissions(grantResults)) {
if (permissionRunnable != null) {
permissionRunnable.hasPermission();
permissionRunnable = null;
}
} else {
Toast.makeText(this, "暂无权限执行相关操作！", Toast.LENGTH_SHORT).show();
if (permissionRunnable != null) {
permissionRunnable.noPermission();
permissionRunnable = null;
}
}
} else {
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
}

}

public boolean verifyPermissions(int[] grantResults) {
// At least one result must be checked.
if (grantResults.length < 1) {
return false;
}

// Verify that each required permission has been granted, otherwise return false.
for (int result : grantResults) {
if (result != PackageManager.PERMISSION_GRANTED) {
return false;
}
}
return true;
}
//********************** END Android M Permission ****************************************