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我有 2 个活动。活动 saveData 和活动 androidCamera

首先，我在 saveData 中有一个表单。当除了EditText“上传照片”之外已经输入了表格。然后，我单击按钮相机拍摄 uri/path 图像。当finish()相机活动将值 uri/path 发送回 SaveData 表单活动时。问题是如何在 SaveData 中更新 EditText“上传照片”，所以当我拍照时，相机会在 EditText“上传照片”中发送路径/uri？

这是我的活动 AndroidCamera

    package com.app.databasesample;

import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.OutputStream;

import android.app.Activity;
import android.content.ContentValues;
import android.content.Intent;
import android.graphics.PixelFormat;
import android.hardware.Camera;
import android.hardware.Camera.PictureCallback;
import android.hardware.Camera.ShutterCallback;
import android.net.Uri;
import android.os.Bundle;
import android.provider.MediaStore.Images.Media;
import android.view.LayoutInflater;
import android.view.SurfaceHolder;
import android.view.SurfaceView;
import android.view.View;
import android.view.ViewGroup.LayoutParams;
import android.widget.Button;
import android.widget.Toast;

public class AndroidCamera extends Activity implements SurfaceHolder.Callback{

    Camera camera;
    SurfaceView surfaceView;
    SurfaceHolder surfaceHolder;
    boolean previewing = false;
    LayoutInflater controlInflater = null;

    final int RESULT_SAVEIMAGE = 0;

    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main_camera);
        //

        getWindow().setFormat(PixelFormat.UNKNOWN);
        surfaceView = (SurfaceView)findViewById(R.id.camerapreview);
        surfaceHolder = surfaceView.getHolder();
        surfaceHolder.addCallback(this);
        surfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);

        controlInflater = LayoutInflater.from(getBaseContext());
        View viewControl = controlInflater.inflate(R.layout.control, null);
        LayoutParams layoutParamsControl 
            = new LayoutParams(LayoutParams.FILL_PARENT, 
            LayoutParams.FILL_PARENT);
        this.addContentView(viewControl, layoutParamsControl);

        Button buttonTakePicture = (Button)findViewById(R.id.takepicture);
        buttonTakePicture.setOnClickListener(new Button.OnClickListener(){

            @Override
            public void onClick(View arg0) {
                // TODO Auto-generated method stub
                camera.takePicture(myShutterCallback, 
                myPictureCallback_RAW, myPictureCallback_JPG);
            }});
    }

    ShutterCallback myShutterCallback = new ShutterCallback(){

        @Override
        public void onShutter() {
            // TODO Auto-generated method stub

        }};

    PictureCallback myPictureCallback_RAW = new PictureCallback(){

        @Override
        public void onPictureTaken(byte[] arg0, Camera arg1) {
            // TODO Auto-generated method stub

        }};



    PictureCallback myPictureCallback_JPG = new PictureCallback(){

        @Override
        public void onPictureTaken(byte[] arg0, Camera arg1) {
            // TODO Auto-generated method stub
            /*Bitmap bitmapPicture 
                = BitmapFactory.decodeByteArray(arg0, 0, arg0.length);  */

            Uri uriTarget = getContentResolver().insert(Media.EXTERNAL_CONTENT_URI, new ContentValues());

            OutputStream imageFileOS;
            try {
                imageFileOS = getContentResolver().openOutputStream(uriTarget);
                imageFileOS.write(arg0);
                imageFileOS.flush();
                imageFileOS.close();


                Toast.makeText(AndroidCamera.this, 
                        "Image Tersimpan: " + uriTarget.toString(), 
                        Toast.LENGTH_LONG).show();

            } catch (FileNotFoundException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            } catch (IOException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
            String sFilename="image";

            Bundle bundle = new Bundle();
            bundle.putString("path", uriTarget.toString());

            Intent newIntent = new Intent(AndroidCamera.this, SaveData.class);
            newIntent.putExtras(bundle);
            startActivityForResult(newIntent, 0);
            //
            //setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
        }};

    @Override
    public void surfaceChanged(SurfaceHolder holder, int format, int width,
            int height) {
        // TODO Auto-generated method stub
        if(previewing){
            camera.stopPreview();
            previewing = false;
        }

        if (camera != null){
            try {
                camera.setPreviewDisplay(surfaceHolder);
                camera.startPreview();
                previewing = true;
            } catch (IOException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
        }
    }

    @Override
    public void surfaceCreated(SurfaceHolder holder) {
        // TODO Auto-generated method stub
        camera = Camera.open();
    }

    @Override
    public void surfaceDestroyed(SurfaceHolder holder) {
        // TODO Auto-generated method stub
        camera.stopPreview();
        camera.release();
        camera = null;
        previewing = false;

    }
}

这是我的活动保存数据

package com.app.databasesample;

import java.io.File;
import java.util.Date;

import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.os.Environment;
import android.provider.MediaStore;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;


public class SaveData extends Activity implements OnClickListener {
    private DataManipulator dh;
    static final int DIALOG_ID = 0;
    private  static final boolean TEST_ONLY_NO_FOTO=false;
    private  static final boolean TAKE_FOTO_HIRES=false;
    private Uri outputFileUri;
    File outputFile;
    private String sDirectory="";
    //String sFilename="";
    public static final int SHOW_SUB_ACTIVITY_TAKE_PICTURE=5;

    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.save);
        View add = findViewById(R.id.Button01add);
        add.setOnClickListener(this);
        View home = findViewById(R.id.Button01home);
        home.setOnClickListener(this);
        View kamera = findViewById(R.id.kamera);
        kamera.setOnClickListener(this);

    }

    @Override 
    public void onActivityResult(int requestCode, int resultCode, Intent data) {     
      super.onActivityResult(requestCode, resultCode, data); 
      switch(requestCode) { 
        case (SHOW_SUB_ACTIVITY_TAKE_PICTURE) : { 
          if (resultCode == Activity.RESULT_OK) { 
          String newText = data.getStringExtra("image");
          // TODO Update your TextView.
          //EditText edt = (newText) findViewById(R.id.txtStatus);
            //edt.setText(uriTarget.toString());
          EditText edt = (EditText) findViewById(R.id.txtStatus);
          edt.setText(newText);

          } 
          break; 
        } 
      } 
    }

    public void onClick(View v){
        switch(v.getId()){
        case R.id.Button01home:
            Intent i = new Intent(this, DatabaseSample.class);
            startActivity(i);
            break;
        case R.id.Button01add:
            View editText1 = (EditText) findViewById(R.id.idHandheld);
            View editText2 = (EditText) findViewById(R.id.namaHama);
            View editText3 = (EditText) findViewById(R.id.jumlahHama);

            String myEditText1=((TextView) editText1).getText().toString();
            String myEditText2=((TextView) editText2).getText().toString();
            String myEditText3=((TextView) editText3).getText().toString();
            this.dh = new DataManipulator(this);
            this.dh.insert(myEditText1,myEditText2,myEditText3);
            showDialog(DIALOG_ID);
            break;
        case R.id.kamera:
            Intent i1 = new Intent(this, AndroidCamera.class);
            startActivityForResult(i1,SHOW_SUB_ACTIVITY_TAKE_PICTURE);
            break;
        }
    }

    private void SaveDatas(){
        Date dt=new Date();
        View editText4 = (EditText) findViewById(R.id.idHandheld);
        View editText5 = (EditText) findViewById(R.id.namaHama);
        View editText6 = (EditText) findViewById(R.id.jumlahHama);
        String myEditText4=((TextView) editText4).getText().toString();
        String myEditText5=((TextView) editText5).getText().toString();
        String myEditText6=((TextView) editText6).getText().toString();
        this.dh = new DataManipulator(this);
        this.dh.insert(myEditText4,myEditText5,myEditText6);
        showDialog(DIALOG_ID);
    }//SaveData

    protected final Dialog onCreateDialog(final int id) {
        Dialog dialog = null;
        switch(id){
        case DIALOG_ID:
            AlertDialog.Builder builder = new AlertDialog.Builder(this);
            builder.setMessage("input data hama sukses disave | Tambah Input ?").setCancelable(false).setPositiveButton("No", new DialogInterface.OnClickListener() {
                public void onClick(DialogInterface dialog, int id){
                    SaveData.this.finish();
                }
            }).setNegativeButton("Yes", new DialogInterface.OnClickListener() {
                public void onClick(DialogInterface dialog, int id) {
                    dialog.cancel();
                }
            });
            AlertDialog alert = builder.create();
            dialog = alert;
            break;

             default:
        }
        return dialog;
        }
    }
4

3 回答 3

0

这是您在 AndroidCamera 活动中所做的：

Bundle bundle = new Bundle();
bundle.putString("path", uriTarget.toString());

Intent newIntent = new Intent(AndroidCamera.this, SaveData.class);
newIntent.putExtras(bundle);
startActivityForResult(newIntent, 0);

更改此行

startActivityForResult(newIntent, 0);

至

startActivity(newIntent);

现在，只需将此代码调用到您的 SaveData Activity ：

更新 ：

 String imagePath="";
    if(getIntent().getExtras() != null){
       imagePath = getIntent().getExtras().getString("path");
       your_editText.setText(imagePath);
    }

希望这对您有所帮助。

谢谢。

于 2012-12-07T09:22:34.160 回答
0

setContentView(R.layout.save);在 SaveData Activity的方法中写下下面的行onCreate()，它将解决您的问题。

EditText edt = (EditText) findViewById(R.id.txtStatus);
于 2012-12-07T09:23:26.640 回答
0

您应该调用方法“setResult”将结果提交给调用活动，然后在“onResume”中检查结果。但是给你一个一般的提示。在 Android 中，您可以利用 Intent 系统为用户谋取利益。一个例子是让用户选择他的相机应用程序来拍照，而不是为此编写自己的活动。这为您节省了大量时间，用户很高兴他可以使用适合他需求的特定相机应用程序，并且他花了几个小时寻找并为此付费。

于 2012-12-07T09:23:42.090 回答