允许用户在Android应用程序中插入图像

Question

我的问题是：如何创建imageButton，允许用户从手机上传图像并将其作为图片配置文件插入到应用程序中？就像whatsapp一样，它允许用户从手机中选择图像并将其设置为图片配置文件。

感谢

Answer 1

这里有以下链接..

create image button

上传图片

example 1

example 2

example 3

Answer 2

我的XML文件

<?xml version="1.0" encoding="utf-8"?> 
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 
      android:orientation="vertical" 
      android:layout_width="fill_parent" 
      android:layout_height="fill_parent"> 

<ImageView 
    android:id="@android:id/icon" 
    android:layout_width="match_parent" 
    android:layout_height="match_parent" 
    android:layout_weight="1" 
    android:onClick="selectImage" 
    /> 

我的文件

public class Test extends AppCompatActivity { 
private static final int SELECT_PICTURE = 0; 
private ImageView imageView; 

@Override 
public void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_test); 
    imageView = (ImageView) findViewById(android.R.id.icon); 
} 

@Override 
protected void onActivityResult(int requestCode, int resultCode, Intent data) { 
    super.onActivityResult(requestCode, resultCode, data); 
    if (resultCode == RESULT_OK) { 
     Bitmap bitmap = getPath(data.getData()); 
     imageView.setImageBitmap(bitmap); 
    } 
} 

private Bitmap getPath(Uri uri) { 

    String[] projection = {MediaStore.Images.Media.DATA}; 
    Cursor cursor = managedQuery(uri, projection, null, null, null); 
    int column_index = cursor 
      .getColumnIndexOrThrow(MediaStore.Images.Media.DATA); 
    cursor.moveToFirst(); 
    String filePath = cursor.getString(column_index); 
    // cursor.close(); 
    // Convert file path into bitmap image using below line. 
    Bitmap bitmap = BitmapFactory.decodeFile(filePath); 

    return bitmap; 
} 

private void selectImage() { 

    Intent intent = new Intent(); 
    intent.setType("image/*"); 
    intent.setAction(Intent.ACTION_GET_CONTENT); 
    startActivityForResult(Intent.createChooser(intent, "Select Picture"), SELECT_PICTURE); 
} 

}