Android選択画像(携帯電話カメラまたは携帯電話画像から)
5680 ワード
package com.app.imagechooser;
import java.io.File;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.database.Cursor;
import android.provider.MediaStore;
import android.net.Uri;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.Bundle;
import android.os.Environment;
import android.view.View;
import android.widget.ArrayAdapter;
import android.widget.ImageView;
import android.widget.Button;
/**
* This example shows how to create and handle image picker in Android.
*
* @author Lorensius W. L. T <[email protected]>
*
*/
public class MainActivity extends Activity {
private Uri mImageCaptureUri;
private ImageView mImageView;
private static final int PICK_FROM_CAMERA = 1;
private static final int PICK_FROM_FILE = 2;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
final String [] items = new String [] {"From Camera", "From SD Card"};
ArrayAdapter<String> adapter = new ArrayAdapter<String> (this, android.R.layout.select_dialog_item,items);
AlertDialog.Builder builder = new AlertDialog.Builder(this);
//android.R.layout.select_dialog_item android
builder.setTitle("Select Image");
builder.setAdapter( adapter, new DialogInterface.OnClickListener() {
public void onClick( DialogInterface dialog, int item ) {
if (item == 0) {
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
File file = new File(Environment.getExternalStorageDirectory(),
"tmp_avatar_" + String.valueOf(System.currentTimeMillis()) + ".jpg");
mImageCaptureUri = Uri.fromFile(file);
try {
intent.putExtra(android.provider.MediaStore.EXTRA_OUTPUT, mImageCaptureUri);
intent.putExtra("return-data", true);
startActivityForResult(intent, PICK_FROM_CAMERA);
} catch (Exception e) {
e.printStackTrace();
}
dialog.cancel();
} else {
Intent intent = new Intent();
intent.setType("image/*");
intent.setAction(Intent.ACTION_GET_CONTENT);
startActivityForResult(Intent.createChooser(intent, "Complete action using"), PICK_FROM_FILE);
}
}
} );
final AlertDialog dialog = builder.create();
mImageView = (ImageView) findViewById(R.id.iv_pic);
((Button) findViewById(R.id.btn_choose)).setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
dialog.show();
}
});
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (resultCode != RESULT_OK) return;
Bitmap bitmap = null;
String path = "";
if (requestCode == PICK_FROM_FILE) {
mImageCaptureUri = data.getData();
path = getRealPathFromURI(mImageCaptureUri); //from Gallery
if (path == null)
path = mImageCaptureUri.getPath(); //from File Manager
if (path != null)
bitmap = BitmapFactory.decodeFile(path);
} else {
path = mImageCaptureUri.getPath();
bitmap = BitmapFactory.decodeFile(path);
}
mImageView.setImageBitmap(bitmap);
}
public String getRealPathFromURI(Uri contentUri) {
String [] proj = {MediaStore.Images.Media.DATA};
Cursor cursor = managedQuery( contentUri, proj, null, null,null);
if (cursor == null) return null;
int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
cursor.moveToFirst();
return cursor.getString(column_index);
}
}
<?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"
android:padding="10dp">
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Android Image Choose Example"/>
<Button
android:id="@+id/btn_choose"
android:text="Choose Image"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="10dp"/>
<ImageView
android:id="@+id/iv_pic"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="10dp"/>
</LinearLayout>