Android 6.0运行时权限 baseactivity简单封装

import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.pm.ActivityInfo;
import android.content.pm.PackageManager;
import android.os.Build;
import android.os.IBinder;
import android.os.PersistableBundle;
import android.support.annotation.NonNull;
import android.support.v4.app.ActivityCompat;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentTransaction;
import android.support.v4.content.ContextCompat;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.KeyEvent;
import android.view.MotionEvent;
import android.view.View;
import android.view.inputmethod.InputMethodManager;
import android.widget.EditText;
import android.widget.Toast;

public abstract class BaseActivity extends AppCompatActivity {

protected BaseFragment currentFragment;

private long lastBackTime = 0;

private static final long TIME_INTERVAL = 2 * 1000;

@Override
public void onCreate(Bundle savedInstanceState, PersistableBundle persistentState) {
super.onCreate(savedInstanceState, persistentState);
//写死竖屏
setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
initIntentParam(getIntent());
}

// 初始化传入的参数
protected abstract void initIntentParam(Intent intent);

//    /**
//     * 添加或者显示 fragment
//     *
//     * @param transaction
//     * @param fragment
//     */
//    protected void addOrShowFragment(FragmentTransaction transaction, Fragment fragment) {
//        if (currentFragment == fragment)
//            return;
//
//        if (!fragment.isAdded()) { // 如果当前fragment未被添加，则添加到Fragment管理器中
//            transaction.hide(currentFragment).add(R.id.fl_content, fragment).commit();
//        } else {
//            transaction.hide(currentFragment).show(fragment).commit();
//        }
//
//        currentFragment = (BaseFragment) fragment;
//
//        setToolbarStyle();
//    }
//
//    protected void setToolbarStyle() {
//    }

private PermissionsResultListener mListener;

private int mRequestCode;

/**
* 其他 Activity 继承 BaseActivity 调用 performRequestPermissions 方法
*
* @param desc        首次申请权限被拒绝后再次申请给用户的描述提示
* @param permissions 要申请的权限数组
* @param requestCode 申请标记值
* @param listener    实现的接口
*/
protected void performRequestPermissions(String desc, String[] permissions, int requestCode, PermissionsResultListener listener) {
if (permissions == null || permissions.length == 0) {
return;
}
mRequestCode = requestCode;
mListener = listener;
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
if (checkEachSelfPermission(permissions)) {// 检查是否声明了权限
requestEachPermissions(desc, permissions, requestCode);
} else {// 已经申请权限
if (mListener != null) {
mListener.onPermissionGrant
da7d
ed();
}
}
} else {
if (mListener != null) {
mListener.onPermissionGranted();
}
}
}

/**
* 申请权限前判断是否需要声明
*
* @param desc
* @param permissions
* @param requestCode
*/
private void requestEachPermissions(String desc, String[] permissions, int requestCode) {
if (shouldShowRequestPermissionRationale(permissions)) {// 需要再次声明
showRationaleDialog(desc, permissions, requestCode);
} else {
ActivityCompat.requestPermissions(BaseActivity.this, permissions, requestCode);
}
}

/**
* 弹出声明的 Dialog
*
* @param desc
* @param permissions
* @param requestCode
*/
private void showRationaleDialog(String desc, final String[] permissions, final int requestCode) {
final AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle("提示")
.setMessage(desc)
.setPositiveButton("确认", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialogInterface, int i) {
ActivityCompat.requestPermissions(BaseActivity.this, permissions, requestCode);
}
})
.setNegativeButton("取消", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialogInterface, int i) {
dialogInterface.dismiss();
}
})
.setCancelable(false)
.show();
}

/**
* 再次申请权限时，是否需要声明
*
* @param permissions
* @return
*/
private boolean shouldShowRequestPermissionRationale(String[] permissions) {
for (String permission : permissions) {
if (ActivityCompat.shouldShowRequestPermissionRationale(this, permission)) {
return true;
}
}
return false;
}

/**
* 检察每个权限是否申请
*
* @param permissions
* @return true 需要申请权限,false 已申请权限
*/
private boolean checkEachSelfPermission(String[] permissions) {
for (String permission : permissions) {
if (ContextCompat.checkSelfPermission(this, permission) != PackageManager.PERMISSION_GRANTED) {
return true;
}
}
return false;
}

/**
* 申请权限结果的回调
*
* @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 == mRequestCode) {
if (checkEachPermissionsGranted(grantResults)) {
if (mListener != null) {
mListener.onPermissionGranted();
}
} else {// 用户拒绝申请权限
if (mListener != null) {
mListener.onPermissionDenied();
}
}
}
}

/**
* 检查回调结果
*
* @param grantResults
* @return
*/
private boolean checkEachPermissionsGranted(int[] grantResults) {
for (int result : grantResults) {
if (result != PackageManager.PERMISSION_GRANTED) {
return false;
}
}
return true;
}

}