问题描述

如何设置一个图像的大小?

我想设置一个图像的大小，这个图像是从camera gallery中获取的，使它符合另外一个
activity 中的ImageView。我现在能获取图像，请问如何调整图像的大小来让它符合ImageView？

 image1.setOnClickListener(new View.OnClickListener() {
    public void onClick(View arg0) {
     Intent intent = new Intent();
     intent.setType("image/*");
     intent.setAction(Intent.ACTION_GET_CONTENT);
     startActivityForResult(Intent.createChooser(intent,"Select Picture"), 0);
     }
     });
    }
    protected void putExtras(Bundle bundle) {
            // TODO Auto-generated method stub

        }
    public void onActivityResult(int requestCode, int resultCode, Intent data) {
        if (resultCode == RESULT_OK) {
            if (requestCode == 0) {
                Uri selectedImageUri = data.getData();
                selectedImagePath = getPath(selectedImageUri);
                System.out.println("Image Path : " + selectedImagePath);
                image1.setImageURI(selectedImageUri);
         }}}
    public String 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();
        return cursor.getString(column_index);

xml:

<ImageView
         android:id="@+id/image1"
         android:layout_width="wrap_content"
         android:layout_height="fill_parent"
         android:layout_margin="3dp"
         android:layout_weight=".1"
         android:background="@drawable/greenline" />

解决方案

你可以看下ImageView的android:scaleType