如何使用queryIntentActivityOptions（）方法 [英] how to use queryIntentActivityOptions() method
本文介绍了如何使用queryIntentActivityOptions（）方法的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
想创建一个对话框，其中显示在可用于选择从所述存储的图像，或使用相机拍摄之一的用户电话的所有应用程序。下面是我的两个意图是我计划使用。
意图photoPickerIntent =新意图（Intent.ACTION_PICK）;
photoPickerIntent.setType（图像/ *）;意图takePicture =新意图（MediaStore.ACTION_IMAGE_CAPTURE）;
我发现来填充我的列表视图中我的，可以执行上述操作的应用程序定制对话框的最好方法是使用 queryIntentActivityOptions（）方法，但我被卡住。
-
我以前从未使用过它，我不知道我是否做了正确的方式
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我不知道我将填充的ListView我从
queryIntentActivityOptions（）方法。 所获取的应用 -
如何实施
onItemClickListener在我的列表视图这是我的自定义对话框。
这是我的方法包含对话框。 请我研究，但还没有找到一个很好的教程，指导我如何，我可以实现 queryIntentActivityOptions（）
私人无效acquirePicture（）{
意图photoPickerIntent =新意图（Intent.ACTION_PICK）;
photoPickerIntent.setType（图像/ *）; 意图takePicture =新意图（MediaStore.ACTION_IMAGE_CAPTURE）;
startActivityForResult（photoPickerIntent，1）; 最后对话的对话=新的对话框（本）;
dialog.requestWindowFeature（Window.FEATURE_NO_TITLE）;
WindowManager.LayoutParams WMLP = dialog.getWindow（）的getAttributes（）。
WMLP.gravity = Gravity.CENTER;
。dialog.getWindow（）setAttributes（WMLP）;
dialog.getWindow（）。setBackgroundDrawable（
新ColorDrawable（android.graphics.Color.TRANSPARENT））;
dialog.setCanceledOnTouchOutside（真）;
dialog.setContentView（R.layout.about_dialog）;
dialog.setCancelable（真）;
LV的ListView =（ListView控件）dialog.findViewById（R.id.listView1）;
软件包管理系统下午= getPackageManager（）; 清单＆LT; ResolveInfo＆GT; launchables = pm.queryIntentActivityOptions（
this.getComponentName（），新的意向[] {photoPickerIntent，takePicture}，
空，PackageManager.MATCH_DEFAULT_ONLY）; Collections.sort（launchables，
新ResolveInfo.DisplayNameComparator（PM））; appAdapter =新AppAdapter（时许，launchables）; lv.setAdapter（适配器）;
lv.setOnItemClickListener（新AdapterView.OnItemClickListener（）{
@覆盖
公共无效onItemClick（适配器视图＆LT;＆GT;为arg0，ARG1查看，INT位置，
长ARG3）{
// TODO自动生成方法存根
ResolveInfo可启动= appAdapter.getItem（位置）;
ActivityInfo活性= launchable.activityInfo;
组件名NAME =新的组件名（activity.applicationInfo.packageName，
activity.name）;
//我不知道下一步做什么，也无论是否在做IT
正确的方法
}
}）; dialog.show（）;
}类AppAdapter扩展ArrayAdapter＆LT; ResolveInfo＆GT; {
私人软件包管理系统PM = NULL; AppAdapter（软件包管理系统时，列表＆LT; ResolveInfo＆GT;应用）{
超（Custom_chooser.this，R.layout.row，应用）;
this.pm =时;
} @覆盖
公共查看getView（INT位置，查看convertView，
父母的ViewGroup）{
如果（convertView == NULL）{
convertView = NewView的（父）;
} bindView（位置，convertView）; 回报（convertView）;
} 私人查看NewView的（父的ViewGroup）{
返回（getLayoutInflater（）膨胀（R.layout.row，父母，FALSE））;
} 私人无效bindView（INT位置，查看行）{
TextView的标签=（TextView中）row.findViewById（R.id.label）; label.setText（的getItem（位置）.loadLabel（PM））; ImageView的图标=（ImageView的）row.findViewById（R.id.icon）; icon.setImageDrawable（的getItem（位置）.loadIcon（PM））;
}
}
解决方案
检查工作之下code打开，相机通过画廊在一次浏览。
//首先精选相机。
最终名单＆LT;＆意向GT; cameraIntents =新的ArrayList＆LT;＆意向GT;（）;
最终意图captureIntent =新意图（
android.provider.MediaStore.ACTION_IMAGE_CAPTURE）;
最终的软件包管理系统软件包管理系统= getPackageManager（）;
最终名单＆LT; ResolveInfo＆GT; listCam = packageManager.queryIntentActivities（
captureIntent，0）;
对于（ResolveInfo RES：listCam）{
最后弦乐的packageName = res.activityInfo.packageName;
最终意向意图=新意图（captureIntent）;
intent.setComponent（新组件名（res.activityInfo.packageName，
res.activityInfo.name））;
intent.setPackage（的packageName）;
intent.putExtra（MediaStore.EXTRA_OUTPUT，outputFileUri）;
cameraIntents.add（意向）;
}最终意图galleryIntent =新意图（）;
galleryIntent.setType（图像/ *）;
galleryIntent.setAction（Intent.ACTION_PICK）;//文件系统的选项选择器。
最终意图chooserIntent = Intent.createChooser（galleryIntent，
选择图片）;//添加摄像头的选项。
chooserIntent.putExtra（Intent.EXTRA_INITIAL_INTENTS，
cameraIntents.toArray（新Parcelable [] {}））;startActivityForResult（chooserIntent，TAKE_PHOTO_ code）;
这会帮助你。!!
引用链接和教程<一个href=\"http://stackoverflow.com/questions/34286447/queryintentactivityoptions-not-working/34287834#34287834\">click这里。
Am trying to create a dialog that shows all applications in a user phone that can be used to select a picture from the storage or take one using the camera. below are my two intents that am planning to use.
Intent photoPickerIntent = new Intent(Intent.ACTION_PICK);
photoPickerIntent.setType("image/*");
Intent takePicture = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
The best way i have found to populate my listview in my customized dialog with applications that can perform the above actions is to use queryIntentActivityOptions() method but am stucked.
i have never used it before and i don't know whether am doing it the right way
i don't know how i will populate my listview with the gotten applications from
queryIntentActivityOptions()method.How to implement
onItemClickListenerin my listview which is in my customized dialog.
This is my method that contain the dialog. please i have researched but haven't found a good tutorial to guide me on how i can implement queryIntentActivityOptions()
private void acquirePicture(){
Intent photoPickerIntent = new Intent(Intent.ACTION_PICK);
photoPickerIntent.setType("image/*");
Intent takePicture = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(photoPickerIntent, 1);
final Dialog dialog = new Dialog(this);
dialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
WindowManager.LayoutParams WMLP = dialog.getWindow().getAttributes();
WMLP.gravity = Gravity.CENTER;
dialog.getWindow().setAttributes(WMLP);
dialog.getWindow().setBackgroundDrawable(
new ColorDrawable(android.graphics.Color.TRANSPARENT));
dialog.setCanceledOnTouchOutside(true);
dialog.setContentView(R.layout.about_dialog);
dialog.setCancelable(true);
ListView lv=(ListView)dialog.findViewById(R.id.listView1);
PackageManager pm=getPackageManager();
List<ResolveInfo> launchables=pm.queryIntentActivityOptions(
this.getComponentName(),new Intent[]{photoPickerIntent,takePicture},
null,PackageManager.MATCH_DEFAULT_ONLY);
Collections.sort(launchables,
new ResolveInfo.DisplayNameComparator(pm));
appAdapter=new AppAdapter(pm, launchables);
lv.setAdapter(adapter);
lv.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> arg0, View arg1, int position,
long arg3) {
// TODO Auto-generated method stub
ResolveInfo launchable=appAdapter.getItem(position);
ActivityInfo activity=launchable.activityInfo;
ComponentName name=new ComponentName(activity.applicationInfo.packageName,
activity.name);
//I DON'T KNOW WHAT TO DO NEXT OR WHETHER AM DOING IT
THE CORRECT WAY
}
});
dialog.show();
}
class AppAdapter extends ArrayAdapter<ResolveInfo> {
private PackageManager pm=null;
AppAdapter(PackageManager pm, List<ResolveInfo> apps) {
super(Custom_chooser.this, R.layout.row, apps);
this.pm=pm;
}
@Override
public View getView(int position, View convertView,
ViewGroup parent) {
if (convertView==null) {
convertView=newView(parent);
}
bindView(position, convertView);
return(convertView);
}
private View newView(ViewGroup parent) {
return(getLayoutInflater().inflate(R.layout.row, parent, false));
}
private void bindView(int position, View row) {
TextView label=(TextView)row.findViewById(R.id.label);
label.setText(getItem(position).loadLabel(pm));
ImageView icon=(ImageView)row.findViewById(R.id.icon);
icon.setImageDrawable(getItem(position).loadIcon(pm));
}
}
解决方案
check the below working code to open, Camera and browse through gallery at once.
// Picks Camera first.
final List<Intent> cameraIntents = new ArrayList<Intent>();
final Intent captureIntent = new Intent(
android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
final PackageManager packageManager = getPackageManager();
final List<ResolveInfo> listCam = packageManager.queryIntentActivities(
captureIntent, 0);
for (ResolveInfo res : listCam) {
final String packageName = res.activityInfo.packageName;
final Intent intent = new Intent(captureIntent);
intent.setComponent(new ComponentName(res.activityInfo.packageName,
res.activityInfo.name));
intent.setPackage(packageName);
intent.putExtra(MediaStore.EXTRA_OUTPUT, outputFileUri);
cameraIntents.add(intent);
}
final Intent galleryIntent = new Intent();
galleryIntent.setType("image/*");
galleryIntent.setAction(Intent.ACTION_PICK);
// Chooser of filesystem options.
final Intent chooserIntent = Intent.createChooser(galleryIntent,
"Select Image from");
// Add the camera options.
chooserIntent.putExtra(Intent.EXTRA_INITIAL_INTENTS,
cameraIntents.toArray(new Parcelable[]{}));
startActivityForResult(chooserIntent, TAKE_PHOTO_CODE);
This will help you.!!
Reference links and tutorials click here.
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