.tif 的图像可以直接在Ａ ndroid studio 里面显示出来吗？

This topic created in 1282 days ago, the information mentioned may be changed or developed.

大家好，我这个菜鸟又来了。我之前得到一个任务，就是在 android studio 里面加载一个.tif 文件格式的图像，然后进行一个图像转换（ python 　 code 处理 image 　 tranformation ，比如 gabor filter/transformation ）的方法。我的问题：　 android studio 手机先要从真实手机里加载.tif 的图像 1.首先我在我的真实的手机下存储了.tif 的１０个图像， 2.然后我现在我的 androidstudio 里设置了一个从手机里选择 galley 选取一张.tif 的图片， 3.然后用 imageview 展示在 app 里。

我有个疑问，.tif 格式的图像真的能正常在手机屏幕上显示出来吗，因为我无法看到。tif 的图像显示在屏幕上？

我的代码：Ｍ ainActivity.java import androidx.annotation.Nullable; import androidx.appcompat.app.AppCompatActivity; import androidx.core.app.ActivityCompat; import androidx.core.content.ContextCompat; import androidx.recyclerview.widget.GridLayoutManager; import androidx.recyclerview.widget.RecyclerView;

import android.Manifest; import android.annotation.SuppressLint; import android.content.Intent; import android.content.pm.PackageManager; import android.graphics.Bitmap; import android.net.Uri; import android.os.Bundle; import android.os.ParcelFileDescriptor; import android.provider.MediaStore; import android.view.View; import android.widget.Button; import android.widget.ImageView; import android.widget.TextView;

import com.chaquo.python.PyObject; import com.chaquo.python.Python; import com.chaquo.python.android.AndroidPlatform;

import org.beyka.tiffbitmapfactory.TiffBitmapFactory;

import java.io.FileNotFoundException; import java.util.ArrayList;

public class MainActivity extends AppCompatActivity {

TextView textView8;

//private static final int Read_Permission= 101;


@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    Button gallery = findViewById(R.id.gallery);
    gallery.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
           Intent intent = new Intent(Intent.ACTION_PICK, MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
           startActivityForResult(intent,3);
        }
    });


    /*if (ContextCompat.checkSelfPermission(MainActivity.this,
            Manifest.permission.READ_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {

        ActivityCompat.requestPermissions(MainActivity.this,
                new String[]{Manifest.permission.READ_EXTERNAL_STORAGE}, Read_Permission);
    }

    textView8 = (TextView) findViewById(R.id.textView8);

    if(!Python.isStarted()){
        Python.start(new AndroidPlatform(this));
    }

    Python py = Python.getInstance();
    PyObject pyobj = py.getModule("hello");
    // give python script name
    // now call this function
    PyObject obj = pyobj.callAttr("main");
    // now set return text to textview
    textView8.setText(obj.toString());



}

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {

    super.onActivityResult(requestCode, resultCode, data);
    if(resultCode == RESULT_OK && data != null){
        try {

            // from the Beyla original code
            ParcelFileDescriptor parcelFileDescriptor = getContentResolver().openFileDescriptor(data.getData(), "r");
            Bitmap bmp = TiffBitmapFactory.decodeFileDescriptor(parcelFileDescriptor.getFd());

            ImageView imageView = findViewById(R.id.imageView);
            imageView.setImageBitmap(bmp);
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        }
       // Uri selectedImage = data.getData();
       // ImageView imageView = findViewById(R.id.imageView);
       // imageView.setImageURI(selectedImage);
    }
}

}

activity_main.xml

<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" tools:context=".MainActivity" tools:ignore="MissingClass">

<ImageView
    android:id="@+id/imageView"
    android:layout_width="250dp"
    android:layout_height="250dp"
    android:layout_centerInParent="true"
    tools:layout_editor_absoluteX="80dp"
    tools:layout_editor_absoluteY="194dp"
    tools:ignore="MissingConstraints" />

<Button
    android:id="@+id/gallery"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_gravity="center"
    android:text="Pick Image"
    tools:ignore="MissingConstraints"
    tools:layout_editor_absoluteX="125dp"
    tools:layout_editor_absoluteY="556dp" />

<TextView
    android:id="@+id/textView8"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_marginTop="33dp"
    android:text="TextView"
    app:layout_constraintBottom_toBottomOf="parent"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintHorizontal_bias="0.436"
    app:layout_constraintStart_toStartOf="parent"
    app:layout_constraintTop_toBottomOf="@+id/pick"
    app:layout_constraintVertical_bias="0.2"
    tools:ignore="MissingConstraints" />

</androidx.constraintlayout.widget.ConstraintLayout>

3 replies • 2022-11-16 03:52:07 +08:00