废话不多说了，直接给大家贴代码了。
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package com.only.android.app;
import java.io.file;
import android.app.activity;
import android.app.alertdialog;
import android.content.dialoginterface;
import android.content.intent;
import android.graphics.bitmap;
import android.graphics.bitmapfactory;
import android.net.uri;
import android.os.bundle;
import android.os.systemclock;
import android.provider.mediastore;
import android.view.view;
import android.widget.button;
import android.widget.imageview;
import com.only.android.r;
public class copyofimagescaleactivity extends activity implements view.onclicklistener {
/** called when the activity is first created. */
private button selectimagebtn;
private imageview imageview;
private file sdcardtempfile;
private alertdialog dialog;
private int crop = 180;
@override
public void oncreate(bundle savedinstancestate) {
super.oncreate(savedinstancestate);
setcontentview(r.layout.imagescale);
selectimagebtn = (button) findviewbyid(r.id.selectimagebtn);
imageview = (imageview) findviewbyid(r.id.imageview);
selectimagebtn.setonclicklistener(this);
sdcardtempfile = new file("/mnt/sdcard/", "tmp_pic_" + systemclock.currentthreadtimemillis() + ".jpg");
}
@override
public void onclick(view v) {
if (v == selectimagebtn) {
if (dialog == null) {
dialog = new alertdialog.builder(this).setitems(new string[] { "相机", "相册" }, new dialoginterface.onclicklistener() {
@override
public void onclick(dialoginterface dialog, int which) {
if (which == 0) {
intent intent = new intent("android.media.action.image_capture");
intent.putextra("output", uri.fromfile(sdcardtempfile));
intent.putextra("crop", "true");
intent.putextra("aspectx", 1);// 裁剪框比例
intent.putextra("aspecty", 1);
intent.putextra("outputx", crop);// 输出图片大小
intent.putextra("outputy", crop);
startactivityforresult(intent, 101);
} else {
intent intent = new intent("android.intent.action.pick");
intent.setdataandtype(mediastore.images.media.internal_content_uri, "image/*");
intent.putextra("output", uri.fromfile(sdcardtempfile));
intent.putextra("crop", "true");
intent.putextra("aspectx", 1);// 裁剪框比例
intent.putextra("aspecty", 1);
intent.putextra("outputx", crop);// 输出图片大小
intent.putextra("outputy", crop);
startactivityforresult(intent, 100);
}
}
}).create();
}
if (!dialog.isshowing()) {
dialog.show();
}
}
}
@override
protected void onactivityresult(int requestcode, int resultcode, intent intent) {
if (resultcode == result_ok) {
bitmap bmp = bitmapfactory.decodefile(sdcardtempfile.getabsolutepath());
imageview.setimagebitmap(bmp);
}
}
}
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以上代码很简单，相信大家都可以看的懂吧，欲了解更多信息请持续关注本站，谢谢。