Question

这是我在android上的第一天，我想创建一个能够捕获图像的应用程序，图像名称将输出到ImageView下的变量和文本框中。

现在这是我的代码，捕获图像正在运行。我接下来需要做的是获取文件名和文件路径。谢谢。我试图找到，但我不知道在哪里放置代码。

import android.support.v7.app.ActionBarActivity;
import android.content.Intent;
import android.graphics.Bitmap;
import android.os.Bundle;
import android.provider.MediaStore;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.ImageView;

public class Create extends ActionBarActivity {

    Button capImg;
    int requestcode = 1;
    ImageView imgView;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_create);
        capImg = (Button)findViewById(R.id.capImg);
        imgView = (ImageView)findViewById(R.id.imgView);

        capImg.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View arg0){
                Intent i = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
                if(i.resolveActivity(getPackageManager())!=null){
                    startActivityForResult(i, requestcode);
                }
            }
        });
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.create, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();
        if (id == R.id.action_settings) {
            return true;
        }
        return super.onOptionsItemSelected(item);
    }

    public void onActivityResult(int requestCode, int resultcode, Intent data){
        if(requestCode==requestcode){
            if(resultcode==RESULT_OK){
                Bundle bundle = new Bundle();
                bundle = data.getExtras();
                Bitmap BMP;
                BMP = (Bitmap)bundle.get("data");
                imgView.setImageBitmap(BMP);
            }
        }
    }
}

Answer 1

保存图片将fileUri添加到意图中。

private Uri fileUri;

fileUri = getOutputMediaFileUri(MEDIA_TYPE_VIDEO);  // create a file to save the video
intent.putExtra(MediaStore.EXTRA_OUTPUT, fileUri);  // set the image file name

http://developer.android.com/guide/topics/media/camera.html

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == CAPTURE_IMAGE_ACTIVITY_REQUEST_CODE) {
    if (resultCode == RESULT_OK) {
        // Image captured and saved to fileUri specified in the Intent
        Toast.makeText(this, "Image saved to:\n" +
                 data.getData(), Toast.LENGTH_LONG).show();
    } else if (resultCode == RESULT_CANCELED) {
        // User cancelled the image capture
    } else {
        // Image capture failed, advise user
    }
}

带有文件名的Android Capture图像

1 个答案: