[英]Image passing from one activity to another using extras
誰能告訴我如何使用附加功能將圖像從一個活動傳遞到另一個活動(想法是)。 我在activity1中顯示一組圖像作為水平滾動視圖。 當我單擊圖像時,它應該以完全不同的布局顯示在另一個活動(activity2)中。
如果已經用json完成了說明,我也會感到滿意,我已經嘗試過此( http://www.vogella.com/tutorials/AndroidIntent/article.html )教程,但找不到真正的答案。
MAIN ACTIVITY:
package com.example.user.horizontal;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.ImageView;
public class MainActivity extends Activity implements OnClickListener {
ImageView Display;
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
ImageView im1 = (ImageView) findViewById(R.id.image1);
ImageView im2 = (ImageView) findViewById(R.id.image2);
ImageView im3 = (ImageView) findViewById(R.id.image3);
ImageView im4 = (ImageView) findViewById(R.id.image4);
ImageView im5 = (ImageView) findViewById(R.id.image5);
ImageView im6 = (ImageView) findViewById(R.id.image6);
ImageView im7 = (ImageView) findViewById(R.id.image7);
im1.setOnClickListener(this);
im2.setOnClickListener(this);
im3.setOnClickListener(this);
im4.setOnClickListener(this);
im5.setOnClickListener(this);
im6.setOnClickListener(this);
im7.setOnClickListener(this);
}
public void onClick(View v) {
Intent clickimage = new Intent(this, OnClick.class);
switch (v.getId()) {
case R.id.image1:
Display.setImageResource(R.drawable.images1);
clickimage.putExtra("display1", "images1");
startActivity(clickimage);
break;
case R.id.image2:
Display.setImageResource(R.drawable.images2);
clickimage.putExtra("display2", "pic2filename");
startActivity(clickimage);
break;
case R.id.image3:
Display.setImageResource(R.drawable.images8);
clickimage.putExtra("display3", "pic3filename");
startActivity(clickimage);
break;
case R.id.image4:
Display.setImageResource(R.drawable.images4);
clickimage.putExtra("display4", "pic4filename");
startActivity(clickimage);
break;
case R.id.image5:
Display.setImageResource(R.drawable.images5);
clickimage.putExtra("display5", "pic5filename");
startActivity(clickimage);
break;
case R.id.image6:
Display.setImageResource(R.drawable.images6);
clickimage.putExtra("display6", "pic6filename");
startActivity(clickimage);
break;
case R.id.image7:
Display.setImageResource(R.drawable.images8);
clickimage.putExtra("display7", "pic7filename");
startActivity(clickimage);
break;
}
}
第二活動:
package com.example.user.horizontal;
import android.app.Activity;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.Bundle;
import android.widget.ImageView;
public class OnClick extends Activity{
private Bitmap mImage1;
private Bitmap mImage2;
private Bitmap mImage3;
private Bitmap mImage4;
private Bitmap mImage5;
private Bitmap mImage6;
private Bitmap mImage7;
private Bitmap mImage8;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.onclick);
Bundle bundle = getIntent().getExtras();
String imageName = bundle.getString("display");
// click listeners
ImageView imageView = (ImageView)findViewById(R.id.image1);
mImage1 = BitmapFactory.decodeResource(getResources(), R.drawable.images1);
mImage2 = BitmapFactory.decodeResource(getResources(), R.drawable.images2);
mImage3 = BitmapFactory.decodeResource(getResources(), R.drawable.images4);
mImage4 = BitmapFactory.decodeResource(getResources(), R.drawable.images5);
mImage5 = BitmapFactory.decodeResource(getResources(), R.drawable.images6);
mImage6 = BitmapFactory.decodeResource(getResources(), R.drawable.images7);
mImage7 = BitmapFactory.decodeResource(getResources(), R.drawable.images8);
mImage8 = BitmapFactory.decodeResource(getResources(), R.drawable.images);
if(imageName.matches("images1")) {
String b = bundle.getString("b");
imageView.setImageBitmap(mImage1);
}
else if (imageName.matches("pic2filename")) {
imageView.setImageBitmap(mImage2);
}
else if (imageName.matches("pic3filename")) {
imageView.setImageBitmap(mImage3);
}
else if (imageName.matches("pic4filename")) {
imageView.setImageBitmap(mImage4);
}
else if (imageName.matches("pic2filename")) {
imageView.setImageBitmap(mImage5);
}
else if (imageName.matches("pic5filename")) {
imageView.setImageBitmap(mImage6);
}
else if (imageName.matches("pic6filename")) {
imageView.setImageBitmap(mImage7);
}
else if (imageName.matches("pic7filename")) {
imageView.setImageBitmap(mImage8);
}
}
}
我是Java和Android的新手。
嘗試使用android中的其他功能將圖像文件路徑或圖像url傳遞到下一個活動
使用意圖傳遞位圖:
Intent intent = new Intent(this, NewActivity.class);
intent.putExtra("BitmapImage", bitmap);
並在另一端檢索它:
Intent intent = getIntent();
Bitmap bitmap = (Bitmap) intent.getParcelableExtra("BitmapImage");
不要在活動之間傳遞圖片。 您應該在Intent
傳遞圖像的路徑,並在新的Activity
顯示它。 這是正確的方法。
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