分享按钮是灰色和残疾人 [英] Share button is greyed out and disabled
问题描述
我有以下的code打开共享意图,但它是残疾人和无法点击。
I have the following code to open the share Intent but it's disabled and unable to click.
@Override
public boolean onCreateOptionsMenu(Menu menu) {
super.onCreateOptionsMenu(menu);
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.share, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case android.R.id.home:
onBackPressed();
break;
case R.id.action_share:
Intent share = new Intent(Intent.ACTION_SEND);
share.setType("image/png");
File folder = new File(Environment.getExternalStorageDirectory() + "/TESTFOLDER");
if (!folder.exists()) {
folder.mkdir();
}
try {
if (file.exists()) {
share.putExtra(Intent.EXTRA_STREAM, Uri.fromFile(file));
startActivityForResult(Intent.createChooser(share, "Share Chart"), 1);
}
else {
//displayToast("Please save your image before sharing.");
}
}
catch (Exception e) {
e.printStackTrace();
}
return true;
default:
return super.onOptionsItemSelected(item);
}
return true;
}
共享XML:
share xml:
<menu xmlns:android="http://schemas.android.com/apk/res/android" >
<item android:id="@+id/action_share"
android:showAsAction="always"
android:title="Share"
android:actionProviderClass="android.widget.ShareActionProvider" />
</menu>
共享图标在我的行动吧禁用:
The share icon is disabled in my action bar:
推荐答案
这是不是你如何使用 ShareActionProvider
。
您拨打 setShareIntent()
在 ShareActionProvider
只要你有数据共享。此方法需要一个意图
对象重新presenting共享操作 - 基本上你有什么作为共享
当地变量。在这一点上,在操作栏上的供应商将被点击,假设有能够基于共享您的设备上的应用你所选择的意图
。
You call setShareIntent()
on the ShareActionProvider
as soon as you have the data to share. This method takes an Intent
object representing the share operation -- basically what you have as the share
local variable. At that point, the provider in the action bar will be clickable, assuming that there are applications on your device capable of sharing based upon your chosen Intent
.
另外,你不需要(或希望有)的 R.id.action_share
情况 onOptionsItemSelected()
,因为 ShareActionProvider
不需要它,它可能会干扰正常操作。
Also, you do not need (or want to have) the R.id.action_share
case in onOptionsItemSelected()
, as ShareActionProvider
does not need it, and it may interfere with proper operation.
例如,这里是一个实现活性 ShareActionProvider
来共享文本输入到的EditText
,弥补内容视图:
For example, here is an activity that implements a ShareActionProvider
to share text entered into the EditText
that makes up the content view:
/***
Copyright (c) 2013 CommonsWare, LLC
Licensed under the Apache License, Version 2.0 (the "License"); you may not
use this file except in compliance with the License. You may obtain a copy
of the License at http://www.apache.org/licenses/LICENSE-2.0. Unless required
by applicable law or agreed to in writing, software distributed under the
License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS
OF ANY KIND, either express or implied. See the License for the specific
language governing permissions and limitations under the License.
From _The Busy Coder's Guide to Android Development_
http://commonsware.com/Android
*/
package com.commonsware.android.sap;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.text.Editable;
import android.text.TextWatcher;
import android.view.Menu;
import android.widget.EditText;
import android.widget.ShareActionProvider;
import android.widget.Toast;
public class MainActivity extends Activity implements
ShareActionProvider.OnShareTargetSelectedListener, TextWatcher {
private ShareActionProvider share=null;
private Intent shareIntent=new Intent(Intent.ACTION_SEND);
private EditText editor=null;
@Override
public void onCreate(Bundle icicle) {
super.onCreate(icicle);
setContentView(R.layout.activity_main);
shareIntent.setType("text/plain");
editor=(EditText)findViewById(R.id.editor);
editor.addTextChangedListener(this);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.actions, menu);
share=
(ShareActionProvider)menu.findItem(R.id.share)
.getActionProvider();
share.setOnShareTargetSelectedListener(this);
return(super.onCreateOptionsMenu(menu));
}
@Override
public boolean onShareTargetSelected(ShareActionProvider source,
Intent intent) {
Toast.makeText(this, intent.getComponent().toString(),
Toast.LENGTH_LONG).show();
return(false);
}
@Override
public void afterTextChanged(Editable s) {
shareIntent.putExtra(Intent.EXTRA_TEXT, editor.getText());
share.setShareIntent(shareIntent);
}
@Override
public void beforeTextChanged(CharSequence s, int start, int count,
int after) {
// ignored
}
@Override
public void onTextChanged(CharSequence s, int start, int before,
int count) {
// ignored
}
}
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