发布于 2017-09-17 01:47:43 | 247 次阅读 | 评论: 0 | 来源: 网友投递

这里有新鲜出炉的精品教程,程序狗速度看过来!

Android移动端操作系统

Android是一种基于Linux的自由及开放源代码的操作系统,主要使用于移动设备,如智能手机和平板电脑,由Google公司和开放手机联盟领导及开发。尚未有统一中文名称,中国大陆地区较多人使用“安卓”或“安致”。


这篇文章主要介绍了Android 6.0调用相机图册崩溃的完美解决方案,本文介绍的非常详细,具有参考借鉴价值,需要的朋友可以参考下

最近客户更新系统发现,以前的项目在调用相机的时候,闪退掉了,很奇怪,后来查阅后发现,Android 6.0以后需要程序授权相机权限,默认会给出提示,让用户授权,个人感觉这一特性很好,大概如下:

导入Android V4, V7包!

Android Studio 导入很简单,右键项目后找到dependency就ok了。

继承AppCompatActivity


public class MainActivity extends AppCompatActivity

引入需要的类库


import android.support.design.widget.Snackbar;
import android.support.v4.app.ActivityCompat;
import android.support.v7.app.AppCompatActivity;

检查相机权限,并请求权限


// BEGIN_INCLUDE(camera_permission_request)
if (ActivityCompat.shouldShowRequestPermissionRationale(this,
Manifest.permission.CAMERA)) {
// 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 user has previously denied the permission.
Log.i(TAG,
"Displaying camera permission rationale to provide additional context.");
Snackbar.make(mLayout, R.string.permission_camera_rationale,
Snackbar.LENGTH_INDEFINITE)
.setAction(R.string.ok, new View.OnClickListener() {
@Override
public void onClick(View view) {
ActivityCompat.requestPermissions(MainActivity.this,
new String[]{Manifest.permission.CAMERA},
REQUEST_CAMERA);
}
})
.show();
} else {
// Camera permission has not been granted yet. Request it directly.
ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.CAMERA},
REQUEST_CAMERA);
}
// END_INCLUDE(camera_permission_request)

授权后接收回调方法:


/**
* Callback received when a permissions request has been completed.
*/
@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions,
@NonNull int[] grantResults) {
if (requestCode == REQUEST_CAMERA) {
// BEGIN_INCLUDE(permission_result)
// Received permission result for camera permission.
Log.i(TAG, "Received response for Camera permission request.");
// Check if the only required permission has been granted
} 
}

混合应用开发解决方案

对于混合应用开发,有两种解决方案:

更改现有插件,添加权限访问代码(可能有有些麻烦)

调用权限插件:

安装:


cordova plugin add cordova-plugin-android-permissions@0.10.0

包含的权限


// Example 
permissions.ACCESS_COARSE_LOCATION
permissions.CAMERA
permissions.GET_ACCOUNTS
permissions.READ_CONTACTS
permissions.READ_CALENDAR
...

示例代码


var permissions = cordova.plugins.permissions;
permissions.hasPermission(permissions.CAMERA, checkPermissionCallback, null);
function checkPermissionCallback(status) {
if(!status.hasPermission) {
var errorCallback = function() {
console.warn('Camera permission is not turned on');
}
permissions.requestPermission(
permissions.CAMERA,
function(status) {
if(!status.hasPermission) errorCallback();
},
errorCallback);
}
}

以上所述是小编给大家介绍的Android 6.0调用相机图册崩溃的完美解决方案,希望对大家有所帮助,如果大家有任何疑问请给我留言,小编会及时回复大家的。在此也非常感谢大家对PHPERZ网站的支持!



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