Android設置拍照或者上傳本地圖片

效果如下：

看代碼：

MainActivity類中：

 

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(選擇圖片)
				.setItems(items, new DialogInterface.OnClickListener() {
					public void onClick(DialogInterface dialog, int item) {
						// 這裡item是根據選擇的方式，
						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, 未找到存儲卡，無法存儲照片！,
										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(圖片路徑？？, 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, 未找到存儲卡，無法存儲照片！,
						Toast.LENGTH_SHORT).show();
			}

		} else if (requestCode == PHOTO_REQUEST_CUT) {
			if (data != null) {
				final Bitmap bitmap = data.getParcelableExtra(data);
				headIcon.setImageBitmap(bitmap);
				// 保存圖片到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);
	}
}

在這裡自定了一個圓形的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：

 

 

自定義圓形的屬性文件：