Android开发从相机或相册获取图片裁剪
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2020-09-03
07:21:04
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Android开发从相机或相册获取图片裁剪开发从相机或相册获取图片裁剪
当我们需要上传图片时，想要裁剪成我们需要的尺寸大小，android手机都带有这个功能，很容易，那么此功能
是如何实现的呢?下面小编给大家介绍Android开发从相机或相册获取图片裁剪，需要的朋友可以参考下
废话不多说了，直接给大家贴代码了。
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");
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