Android设置拍照或者上传本地图片

亦余心之所善兮，虽九死其犹未悔。这篇文章主要讲述Android设置拍照或者上传本地图片相关的知识，希望能为你提供帮助。
效果例如以下：

文章图片

看代码：
MainActivity类中：

package com.example.ceshidemo; import java.io.ByteArrayOutputStream; import java.io.File; import java.io.FileOutputStream; import java.util.Calendar; import android.app.Activity; import android.app.AlertDialog; import android.content.Context; import android.content.DialogInterface; import android.content.Intent; import android.graphics.Bitmap; import android.net.Uri; import android.os.Bundle; import android.os.Environment; import android.provider.MediaStore; import android.util.Log; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.Toast; public class MainActivity extends Activity { private static final int PHOTO_REQUEST_CAREMA = 1; private static final int PHOTO_REQUEST_GALLERY = 2; private static final int PHOTO_REQUEST_CUT = 3; private static final String PHOTO_FILE_NAME = "temp_photo.jpg"; private File tempFile; private CircleImageView headIcon; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); initView(); } private void initView() {headIcon = (CircleImageView) findViewById(R.id.headIcon); headIcon.setOnClickListener(new OnClickListener() {@Override public void onClick(View v) { // TODO Auto-generated method stub changeHeadIcon(); } }); changeTheme(); File file = new File(MainActivity.this.getFilesDir(), "_head_icon.jpg"); if (file.exists()) { headIcon.setImageURI(Uri.fromFile(file)); } } private void changeTheme() { Calendar c = Calendar.getInstance(); System.out.println(c.get(Calendar.HOUR_OF_DAY)); if (c.get(Calendar.HOUR_OF_DAY) < 18 & & c.get(Calendar.HOUR_OF_DAY) > = 6) { headIcon.setImageResource(R.drawable.ic_hehe); } else { headIcon.setImageResource(R.drawable.ic_launcher); } } private void changeHeadIcon() { final CharSequence[] items = { "相冊", "拍照" }; AlertDialog dlg = new AlertDialog.Builder(MainActivity.this) .setTitle("选择图片") .setItems(items, new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int item) { // 这里item是依据选择的方式。 if (item == 0) { Intent intent = new Intent(Intent.ACTION_PICK); intent.setType("image/*"); startActivityForResult(intent, PHOTO_REQUEST_GALLERY); } else { Intent intent = new Intent( MediaStore.ACTION_IMAGE_CAPTURE); if (Environment.getExternalStorageState().equals( Environment.MEDIA_MOUNTED)) { tempFile = new File(Environment .getExternalStorageDirectory(), PHOTO_FILE_NAME); Uri uri = Uri.fromFile(tempFile); intent.putExtra(MediaStore.EXTRA_OUTPUT, uri); startActivityForResult(intent, PHOTO_REQUEST_CAREMA); } else { Toast.makeText(MainActivity.this, "未找到存储卡，无法存储照片！", Toast.LENGTH_SHORT).show(); } } } }).create(); dlg.show(); } @Override public void onActivityResult(int requestCode, int resultCode, Intent data) { super.onActivityResult(requestCode, resultCode, data); if (requestCode == PHOTO_REQUEST_GALLERY) { if (data != null) { Uri uri = data.getData(); Log.e("图片路径？？", data.getData() + ""); crop(uri); }} else if (requestCode == PHOTO_REQUEST_CAREMA) { if (Environment.getExternalStorageState().equals( Environment.MEDIA_MOUNTED)) { crop(Uri.fromFile(tempFile)); } else { Toast.makeText(MainActivity.this, "未找到存储卡，无法存储照片！
", Toast.LENGTH_SHORT).show(); }} else if (requestCode == PHOTO_REQUEST_CUT) { if (data != null) { final Bitmap bitmap = data.getParcelableExtra("data"); headIcon.setImageBitmap(bitmap); // 保存图片到internal storage FileOutputStream outputStream; try { ByteArrayOutputStream out = new ByteArrayOutputStream(); bitmap.compress(Bitmap.CompressFormat.JPEG, 100, out); out.flush(); // out.close(); // final byte[] buffer = out.toByteArray(); // outputStream.write(buffer); outputStream = MainActivity.this.openFileOutput("_head_icon.jpg", Context.MODE_PRIVATE); out.writeTo(outputStream); out.close(); outputStream.close(); } catch (Exception e) { e.printStackTrace(); } } try { if (tempFile != null & & tempFile.exists()) tempFile.delete(); } catch (Exception e) { e.printStackTrace(); }} } private void crop(Uri uri) { Intent intent = new Intent("com.android.camera.action.CROP"); intent.setDataAndType(uri, "image/*"); intent.putExtra("crop", "true"); intent.putExtra("aspectX", 1); intent.putExtra("aspectY", 1); intent.putExtra("outputX", 250); intent.putExtra("outputY", 250); intent.putExtra("outputFormat", "JPEG"); intent.putExtra("noFaceDetection", true); intent.putExtra("return-data", true); startActivityForResult(intent, PHOTO_REQUEST_CUT); } }

在这里自定了一个圆形的View：CircleImageView

package com.example.ceshidemo; import android.content.Context; import android.content.res.TypedArray; import android.graphics.Bitmap; import android.graphics.BitmapShader; import android.graphics.Canvas; import android.graphics.Color; import android.graphics.Matrix; import android.graphics.Paint; import android.graphics.RectF; import android.graphics.Shader; import android.graphics.drawable.BitmapDrawable; import android.graphics.drawable.ColorDrawable; import android.graphics.drawable.Drawable; import android.net.Uri; import android.util.AttributeSet; import android.widget.ImageView; public class CircleImageView extends ImageView{private static final ScaleType SCALE_TYPE = ScaleType.CENTER_CROP; private static final Bitmap.Config BITMAP_CONFIG = Bitmap.Config.ARGB_8888; private static final int COLORDRAWABLE_DIMENSION = 1; private static final int DEFAULT_BORDER_WIDTH = 0; private static final int DEFAULT_BORDER_COLOR = Color.BLACK; private final RectF mDrawableRect = new RectF(); private final RectF mBorderRect = new RectF(); private final Matrix mShaderMatrix = new Matrix(); private final Paint mBitmapPaint = new Paint(); private final Paint mBorderPaint = new Paint(); private int mBorderColor = DEFAULT_BORDER_COLOR; private int mBorderWidth = DEFAULT_BORDER_WIDTH; private Bitmap mBitmap; private BitmapShader mBitmapShader; private int mBitmapWidth; private int mBitmapHeight; private float mDrawableRadius; private float mBorderRadius; private boolean mReady; private boolean mSetupPending; public CircleImageView(Context context) { super(context); init(); }public CircleImageView(Context context, AttributeSet attrs) { this(context, attrs, 0); }public CircleImageView(Context context, AttributeSet attrs, int defStyle) { super(context, attrs, defStyle); TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.CircleImageView, defStyle, 0); mBorderWidth = a.getDimensionPixelSize(R.styleable.CircleImageView_border_width, DEFAULT_BORDER_WIDTH); mBorderColor = a.getColor(R.styleable.CircleImageView_border_color, DEFAULT_BORDER_COLOR); a.recycle(); init(); }private void init() { super.setScaleType(SCALE_TYPE); mReady = true; if (mSetupPending) { setup(); mSetupPending = false; } }@Override public ScaleType getScaleType() { return SCALE_TYPE; }@Override public void setScaleType(ScaleType scaleType) { if (scaleType != SCALE_TYPE) { throw new IllegalArgumentException(String.format("ScaleType %s not supported.", scaleType)); } }@Override protected void onDraw(Canvas canvas) { if (getDrawable() == null) { return; }canvas.drawCircle(getWidth() / 2, getHeight() / 2, mDrawableRadius, mBitmapPaint); if (mBorderWidth != 0) { canvas.drawCircle(getWidth() / 2, getHeight() / 2, mBorderRadius, mBorderPaint); } }@Override protected void onSizeChanged(int w, int h, int oldw, int oldh) { super.onSizeChanged(w, h, oldw, oldh); setup(); }public int getBorderColor() { return mBorderColor; }public void setBorderColor(int borderColor) { if (borderColor == mBorderColor) { return; }mBorderColor = borderColor; mBorderPaint.setColor(mBorderColor); invalidate(); }public int getBorderWidth() { return mBorderWidth; }public void setBorderWidth(int borderWidth) { if (borderWidth == mBorderWidth) { return; }mBorderWidth = borderWidth; setup(); }@Override public void setImageBitmap(Bitmap bm) { super.setImageBitmap(bm); mBitmap = bm; setup(); }@Override public void setImageDrawable(Drawable drawable) { super.setImageDrawable(drawable); mBitmap = getBitmapFromDrawable(drawable); setup(); }@Override public void setImageResource(int resId) { super.setImageResource(resId); mBitmap = getBitmapFromDrawable(getDrawable()); setup(); }@Override public void setImageURI(Uri uri) { super.setImageURI(uri); mBitmap = getBitmapFromDrawable(getDrawable()); setup(); }private Bitmap getBitmapFromDrawable(Drawable drawable) { if (drawable == null) { return null; }if (drawable instanceof BitmapDrawable) { return ((BitmapDrawable) drawable).getBitmap(); }try { Bitmap bitmap; if (drawable instanceof ColorDrawable) { bitmap = Bitmap.createBitmap(COLORDRAWABLE_DIMENSION, COLORDRAWABLE_DIMENSION, BITMAP_CONFIG); } else { bitmap = Bitmap.createBitmap(drawable.getIntrinsicWidth(), drawable.getIntrinsicHeight(), BITMAP_CONFIG); }Canvas canvas = new Canvas(bitmap); drawable.setBounds(0, 0, canvas.getWidth(), canvas.getHeight()); drawable.draw(canvas); return bitmap; } catch (OutOfMemoryError e) { return null; } }private void setup() { if (!mReady) { mSetupPending = true; return; }if (mBitmap == null) { return; }mBitmapShader = new BitmapShader(mBitmap, Shader.TileMode.CLAMP, Shader.TileMode.CLAMP); mBitmapPaint.setAntiAlias(true); mBitmapPaint.setShader(mBitmapShader); mBorderPaint.setStyle(Paint.Style.STROKE); mBorderPaint.setAntiAlias(true); mBorderPaint.setColor(mBorderColor); mBorderPaint.setStrokeWidth(mBorderWidth); mBitmapHeight = mBitmap.getHeight(); mBitmapWidth = mBitmap.getWidth(); mBorderRect.set(0, 0, getWidth(), getHeight()); mBorderRadius = Math.min((mBorderRect.height() - mBorderWidth) / 2, (mBorderRect.width() - mBorderWidth) / 2); mDrawableRect.set(mBorderWidth, mBorderWidth, mBorderRect.width() - mBorderWidth, mBorderRect.height() - mBorderWidth); mDrawableRadius = Math.min(mDrawableRect.height() / 2, mDrawableRect.width() / 2); updateShaderMatrix(); invalidate(); }private void updateShaderMatrix() { float scale; float dx = 0; float dy = 0; mShaderMatrix.set(null); if (mBitmapWidth * mDrawableRect.height() > mDrawableRect.width() * mBitmapHeight) { scale = mDrawableRect.height() / (float) mBitmapHeight; dx = (mDrawableRect.width() - mBitmapWidth * scale) * 0.5f; } else { scale = mDrawableRect.width() / (float) mBitmapWidth; dy = (mDrawableRect.height() - mBitmapHeight * scale) * 0.5f; }mShaderMatrix.setScale(scale, scale); mShaderMatrix.postTranslate((int) (dx + 0.5f) + mBorderWidth, (int) (dy + 0.5f) + mBorderWidth); mBitmapShader.setLocalMatrix(mShaderMatrix); }}

main_activity.xml文件：

< ?
xml version="1.0" encoding="utf-8"?> < LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:circleimageView="http://schemas.android.com/apk/res/com.example.ceshidemo" android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="vertical" > < TextView android:id="@+id/bt_photo" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="拍照或者选择图片" > < /TextView> < com.example.ceshidemo.CircleImageView android:id="@+id/headIcon" android:layout_width="65dp" android:layout_height="65dp" android:layout_gravity="center" android:layout_marginBottom="8dp" circleimageView:border_color="#ffffff" circleimageView:border_width="1dp" /> < /LinearLayout>

自己定义圆形的属性文件：

< ?xml version="1.0" encoding="utf-8"?> < resources> < declare-styleable name="DonutProgress"> < attr name="donut_progress" format="integer"/> < attr name="donut_max" format="integer"/> < attr name="donut_unfinished_color" format="color"/> < attr name="donut_finished_color" format="color"/> < attr name="donut_finished_stroke_width" format="dimension"/> < attr name="donut_unfinished_stroke_width" format="dimension"/> < attr name="donut_text_size" format="dimension"/> < attr name="donut_text_color" format="color"/> < attr name="donut_prefix_text" format="string"/> < attr name="donut_suffix_text" format="string"/> < attr name="donut_background_color" format="color"/> < /declare-styleable> < declare-styleable name="CircleImageView"> < attr name="border_width" format="dimension" /> < attr name="border_color" format="color" /> < /declare-styleable> < /resources>

上面全部代码，点击demo下载測试：http://download.csdn.net/detail/onceing/8884045

【Android设置拍照或者上传本地图片】