我正在开发一个捕获图像然后比较图像的应用程序。在主屏幕或第一个屏幕上，我有一个图像视图，表示点击n比较。当我点击它时，它打开相机，捕获图片，然后在第二个活动上显示图像。在第二个活动中，我有四个图像视图和一个捕获照片的按钮。现在当我点击图像时，它应该放大，当我再次点击它应该放大它。这适用于第一张图像，但对于其他图像，当我缩小时，它也放大其他图像。请告诉我我错在哪里。我已将相机权限放在Manifest文件中，下面是第二个活动的代码（CompareActivity.java）
import android.app.Activity;
import android.content.Intent;
import android.graphics.Bitmap;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
import android.view.View.OnClickListener;
import android.view.animation.Animation;
import android.view.animation.AnimationUtils;
/ * * * @author用户 * * /
public class CompareActivity extends Activity {
ImageView imv_compare_pic_1, imv_compare_pic_2, imv_compare_pic_3,
imv_compare_pic_4;
Button btn_capture_photo;
int count = 0;
boolean[] pressed = { false, false, false, false };
Animation zoomin, zoomout;
/*
* (non-Javadoc)
*
* @see android.app.Activity#onCreate(android.os.Bundle)
*/
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_compare);
imv_compare_pic_1 = (ImageView) findViewById(R.id.imv_compare_pic_1);
Bitmap bitmap = getIntent().getExtras().getParcelable("image");
imv_compare_pic_1.setImageBitmap(bitmap);
/*
* this variable is to check the number of images that have been placed
* in activity. Since one image has been set, count is incremented to 1
*/
count = 1;
// zoom in and zoom out
zoomin = AnimationUtils.loadAnimation(this, R.anim.zoomin);
zoomin.setFillAfter(true);
zoomout = AnimationUtils.loadAnimation(this, R.anim.zoomout);
imv_compare_pic_1.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
/*
* pressed[0] is false because first image hasn't been clicked
* so it will zoom in
*/
if (!pressed[0]) {
imv_compare_pic_1.startAnimation(zoomin);
pressed[0] = !pressed[0];
} else {
// Now pressed[0] is true so it will start zoom out
// animation
imv_compare_pic_1.startAnimation(zoomout);
pressed[0] = !pressed[0];
}
}
});
btn_capture_photo = (Button) findViewById(R.id.btn_capture);
btn_capture_photo.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
open();
}
});
}
public void open() {
Intent intent = new Intent(
android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(intent, 0);
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
// TODO Auto-generated method stub
super.onActivityResult(requestCode, resultCode, data);
Bitmap bp = (Bitmap) data.getExtras().get("data");
if (count == 1) {
imv_compare_pic_2 = (ImageView) findViewById(R.id.imv_compare_pic_2);
imv_compare_pic_2.setImageBitmap(bp);
count = 2;
// set zoom in and zoom out on the event of onclick
// imv_compare_pic_2.setAnimation(zoomin);
// imv_compare_pic_2.setAnimation(zoomout);
imv_compare_pic_2.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v2) {
// TODO Auto-generated method stub
if (!pressed[1]) {
imv_compare_pic_2.startAnimation(zoomin);
pressed[1] = !pressed[1];
} else {
imv_compare_pic_2.startAnimation(zoomout);
pressed[1] = !pressed[1];
}
}
});
}
else if (count == 2) {
imv_compare_pic_3 = (ImageView) findViewById(R.id.imv_compare_pic_3);
imv_compare_pic_3.setImageBitmap(bp);
count = 3;
// set zoom in and zoom out on the event of onclick
// imv_compare_pic_3.setAnimation(zoomin);
// imv_compare_pic_3.setAnimation(zoomout);
imv_compare_pic_3.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v3) {
// TODO Auto-generated method stub
if (!pressed[2]) {
imv_compare_pic_3.startAnimation(zoomin);
pressed[2] = !pressed[2];
} else {
imv_compare_pic_3.startAnimation(zoomout);
pressed[2] = !pressed[2];
}
}
});
} else if (count == 3) {
imv_compare_pic_4 = (ImageView) findViewById(R.id.imv_compare_pic_4);
imv_compare_pic_4.setImageBitmap(bp);
count = 4;
// btn_capture_photo.setVisibility(View.INVISIBLE);
// set zoom in and zoom out on the event of onclick
// imv_compare_pic_4.setAnimation(zoomin);
// imv_compare_pic_4.setAnimation(zoomout);
imv_compare_pic_4.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v4) {
// TODO Auto-generated method stub
if (!pressed[3]) {
imv_compare_pic_4.startAnimation(zoomin);
pressed[3] = !pressed[3];
} else {
imv_compare_pic_4.startAnimation(zoomout);
pressed[3] = !pressed[3];
}
}
});
}
}
}
答案 0 :(得分：0)
您正在开始动画后递增计数。
另外，你只为pressed状态维护一个布尔值。
我建议你使用一个数组作为布尔值，因为你需要pressed状态用于特定的imageview。
类似的东西：
//in onCreate
boolean[] pressed = {false, false, false, false};
//an example for one imageview
...
else if (count == 2) {
imv_compare_pic_3 = (ImageView) findViewById(R.id.imv_compare_pic_3);
imv_compare_pic_3.setImageBitmap(bp);
count = 3;
// set zoom in and zoom out on the event of onclick
//imv_compare_pic_3.setAnimation(zoomin);
//imv_compare_pic_3.setAnimation(zoomout);
imv_compare_pic_3.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v3) {
// TODO Auto-generated method stub
if (!pressed[2]) {
imv_compare_pic_3.startAnimation(zoomin);
pressed[2] = !pressed[2];
} else {
imv_compare_pic_3.startAnimation(zoomout);
pressed[2] = !pressed[2];
}
}
});
}
请重新检查您的计数。从1到4，我建议将其从0更改为3.因此，使用布尔数组索引很容易。
希望这能解决您的问题。