显示从保存图片的路径数据库映像 [英] show image from database where you saved the path of image
问题描述
您好我有救我DATABSE图像的路径我。怎么能显示在屏幕上的形象呢？映像路径保存在列照片表contactTest1！
现在我可以在我的屏幕上显示的图像仅路径，这样每个联系人：
我用这个在dbconsole.java：
私有静态的String [] FROM = {DbConstants.NAME，DbConstants.PHOTO，DbConstants.EMAIL，DbConstants.URL_STRING，DbConstants.ADRESS，DbConstants.PHONE，_ID};
私有静态诠释[] TO = {R.id.name，R.id.edittext1}; 私人无效showContacts（光标光标）{
//设置数据绑定
SimpleCursorAdapter适配器=新SimpleCursorAdapter（这一点，R.layout.item，光标，FROM，TO）;
setListAdapter（适配器）;
这在code我用它来获得图像的路径：
按钮sButton =（按钮）findViewById（R.id.button1）;
sButton.setOnClickListener（新OnClickListener（）{ 公共无效的onClick（查看为arg0）{
//中的onCreate或任何事件在您希望用户
//选择一个文件
意向意图=新的Intent（）;
intent.setType（图像/ *）;
intent.setAction（Intent.ACTION_GET_CONTENT）;
startActivityForResult（Intent.createChooser（意向，
选择图片），SELECT_PICTURE）;
}
}）;
公共无效的onActivityResult（INT申请code，INT结果code，意图数据）{
如果（结果code == RESULT_OK）{
如果（要求code == 1）{
// currImageURI是我使用容纳内容全局变量：// URI的图像
乌里currImageURI = data.getData（）;
getRealPathFromURI（currImageURI）; }
}
}
公共字符串getRealPathFromURI（URI currImageURI）{
//可以张贴图片
的String [] = PROJ {MediaStore.Images.Media.DATA};
光标光标= managedQuery（currImageURI，
PROJ，//哪些列返回
空，// WHERE子句;该行返回（所有行）
空，// WHERE子句选择参数（无）
空值）; //订单by子句（按名称升序）
INT与Column_Index = cursor.getColumnIndexOrThrow（MediaStore.Images.Media.DATA）;
cursor.moveToFirst（）;
波萨=（EditText上）findViewById（R.id.editText1）;
poza.setText（currImageURI.toString（））;
返回cursor.getString（Column_Index中）; }
您将不得不延长SimpleCursorAdapter并覆盖getView（），这是在哪里，在你的列表中的每个项目，你可以在行中布局的数据。
有关的形象，我觉得有一个叫BitmapFactory类，你可以用它来从URL中创建图像，路径等等。我没有用它自己，所以不能举个例子，我害怕。
祝你好运！
Hello i have saved in my databse the path of an image .How can i show the image on the screen?The image path is saved in column "photo" in table "contactTest1" ! Now i can show on my screen only the path of image for each contact like this:
i use this in dbconsole.java:
private static String[] FROM = { DbConstants.NAME, DbConstants.PHOTO, DbConstants.EMAIL,DbConstants.URL_STRING,DbConstants.ADRESS,DbConstants.PHONE,_ID};
private static int[] TO ={R.id.name,R.id.edittext1};
private void showContacts(Cursor cursor) {
//set up data binding
SimpleCursorAdapter adapter = new SimpleCursorAdapter(this, R.layout.item, cursor, FROM, TO);
setListAdapter(adapter);
this the code i use to get path of image:
Button sButton = (Button) findViewById(R.id.button1);
sButton.setOnClickListener(new OnClickListener() {
public void onClick(View arg0) {
// in onCreate or any event where your want the user to
// select a file
Intent intent = new Intent();
intent.setType("image/*");
intent.setAction(Intent.ACTION_GET_CONTENT);
startActivityForResult(Intent.createChooser(intent,
"Select Picture"), SELECT_PICTURE);
}
});
public void onActivityResult(int requestCode, int resultCode, Intent data) {
if (resultCode == RESULT_OK) {
if (requestCode == 1) {
// currImageURI is the global variable I'm using to hold the content:// URI of the image
Uri currImageURI = data.getData();
getRealPathFromURI(currImageURI);
}
}
}
public String getRealPathFromURI(Uri currImageURI) {
// can post image
String [] proj={MediaStore.Images.Media.DATA};
Cursor cursor = managedQuery( currImageURI,
proj, // Which columns to return
null, // WHERE clause; which rows to return (all rows)
null, // WHERE clause selection arguments (none)
null); // Order-by clause (ascending by name)
int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
cursor.moveToFirst();
poza=(EditText)findViewById(R.id.editText1);
poza.setText(currImageURI.toString());
return cursor.getString(column_index);
}
You'll have to extend the SimpleCursorAdapter and override getView() which is where, for every item in your list, you can layout the data in the row.
For the image, I think there is a class called BitmapFactory which you can use to create images from urls, paths etc. I haven't used it myself, so can't give an example I'm afraid.
Good luck!
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