Local picture selection (Open Media Library, select picture)

What I want to achieve in this survey is: after clicking the pictures button, get all the pictures in the phone, select a picture, and display it in ImageView.

Application: Image selection when uploading pictures, similar to "browse".

Effect:

All the pictures are listed, including the table of contents.

In activity ACTION There is a "action_get_content" string constant that allows the user to select a specific type of data and return the URI of that data. We use this constant and then set the type to "image/*", You can get all the image in your Android phone.

Main.xml:

[XHTML] view plaincopyprint? 

2. <?xml version= "1.0" encoding= "Utf-8"?>
4. <linearlayout xmlns:android= "Http://schemas.android.com/apk/res/android"
6. android:orientation= "Vertical"
8. Android:layout_width= "Fill_parent"
10. android:layout_height= "Fill_parent"
12. >
14. <textview
16. Android:layout_width= "Fill_parent"
18. android:layout_height= "Wrap_content"
20. android:text= "@string/hello"
22. />
24. <button
26. Android:id= "@+id/b01"
28. Android:layout_width= "Fill_parent"
30. android:layout_height= "Wrap_content"
32. />
34. <imageview
36. Android:id= "@+id/iv01"
38. Android:layout_width= "Fill_parent"
40. android:layout_height= "Wrap_content"
42. />
44. </LinearLayout>

Lesson_01_pic.java:

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2. Package COM.YFZ;
4. Import java.io.FileNotFoundException;
6. Import android.app.Activity;
8. Import Android.content.ContentResolver;
10. Import android.content.Intent;
12. Import Android.graphics.Bitmap;
14. Import Android.graphics.BitmapFactory;
16. Import Android.net.Uri;
18. Import Android.os.Bundle;
20. Import Android.util.Log;
22. Import Android.view.View;
24. Import Android.widget.Button;
26. Import Android.widget.ImageView;
28. public class Lesson_01_pic extends Activity {
30. /** called when the activity is first created. */
32. @Override
34. public void OnCreate (Bundle savedinstancestate) {
36. Super.oncreate (savedinstancestate);
38. Setcontentview (R.layout.main);
42. Button button = (button) Findviewbyid (R.ID.B01);
44. Button.settext ("select Picture");
46. Button.setonclicklistener (New Button.onclicklistener () {
48. @Override
50. public void OnClick (View v) {
52. Intent Intent = new Intent ();
54. /* Turn on pictures screen type set to image */
56. Intent.settype ("image/*");
58. /* Use intent.action_get_content this ACTION */
60. Intent.setaction (intent.action_get_content);
62. /* Return to this screen after obtaining a photo */
64. Startactivityforresult (Intent, 1);
66. }
70. });
72. }
76. @Override
78. protected void Onactivityresult (int requestcode, int resultcode, Intent data) {
80. if (ResultCode = = RESULT_OK) {
82. Uri uri = Data.getdata ();
84. LOG.E ("uri", Uri.tostring ());
86. Contentresolver CR = This.getcontentresolver ();
88. try {
90. Bitmap Bitmap = Bitmapfactory.decodestream (Cr.openinputstream (URI));
92. ImageView ImageView = (ImageView) Findviewbyid (R.ID.IV01);
94. /* Set Bitmap to ImageView */
96. Imageview.setimagebitmap (bitmap);
98. } catch (FileNotFoundException e) {
100. LOG.E ("Exception", E.getmessage (), E);
102. }
104. }
106. Super.onactivityresult (Requestcode, ResultCode, data);
108. }
110. }

Well, that's going to be so much.

Local picture selection (Open Media Library, select picture)