Android 我想通过Intent将图像从一个活动传递到另一个活动?
我正在使用这部分代码发送图像Android 我想通过Intent将图像从一个活动传递到另一个活动?,android,Android,我正在使用这部分代码发送图像 public void onClick(View v) { Intent goto_membersdealsdetails = new Intent( "com.abc.cd.FE"); goto_membersdealsdetails.putExtra("valueq", R.drawable.app_icon);
public void onClick(View v) {
Intent goto_membersdealsdetails = new Intent(
"com.abc.cd.FE");
goto_membersdealsdetails.putExtra("valueq", R.drawable.app_icon);
v.getContext().startActivity(goto_membersdealsdetails);
为了得到图像,我使用了这种代码
imag_link = getIntent().getStringExtra("valueq");
Toast.makeText(getApplicationContext(), imag_link, Toast.LENGTH_LONG)
.show();
它的吐司是提供一个空白吐司
我想将图像设置为特定的图像视图…建议您可以传递字节数组并获取字节数组,然后制作位图
Bitmap bitmap = BitmapFactory.decodeResource(getResources(), R.drawable.ic_launcher);
ByteArrayOutputStream baos = new ByteArrayOutputStream();
bitmap.compress(Bitmap.CompressFormat.PNG, 100, baos);
byte[] b = baos.toByteArray();
Intent intent = new Intent(this, ActivityB.class);
intent.putExtra("picture", b);
startActivity(intent);
在活动B中,您通过字节数组(解码图片)接收意图,并将其作为源应用于ImageView:
Bundle extras = getIntent().getExtras();
byte[] b = extras.getByteArray("picture");
Bitmap bmp = BitmapFactory.decodeByteArray(b, 0, b.length);
ImageView image = (ImageView) findViewById(R.id.imageView1);
image.setImageBitmap(bmp);
您可以传递字节数组并获取字节数组,然后生成位图
Bitmap bitmap = BitmapFactory.decodeResource(getResources(), R.drawable.ic_launcher);
ByteArrayOutputStream baos = new ByteArrayOutputStream();
bitmap.compress(Bitmap.CompressFormat.PNG, 100, baos);
byte[] b = baos.toByteArray();
Intent intent = new Intent(this, ActivityB.class);
intent.putExtra("picture", b);
startActivity(intent);
在活动B中,您通过字节数组(解码图片)接收意图,并将其作为源应用于ImageView:
Bundle extras = getIntent().getExtras();
byte[] b = extras.getByteArray("picture");
Bitmap bmp = BitmapFactory.decodeByteArray(b, 0, b.length);
ImageView image = (ImageView) findViewById(R.id.imageView1);
image.setImageBitmap(bmp);
您正在传递一个int值。叫
imag_link = getIntent().getIntExtra("valueq", value);
您正在传递一个int值。叫
imag_link = getIntent().getIntExtra("valueq", value);
这起作用了:int imag_link=getIntent().getIntExtra(“valueq”,R.drawable.bar_normal);Toast.makeText(getApplicationContext(),imag_链接,Toast.LENGTH_LONG.show();这起作用了:int imag_link=getIntent().getIntExtra(“valueq”,R.drawable.bar_normal);Toast.makeText(getApplicationContext(),imag_链接,Toast.LENGTH_LONG.show();