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@ -1,7 +1,5 @@
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package net.micode.notes.ui;
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import static net.micode.notes.tool.DataUtils.TAG;
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import android.app.Activity;
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import android.graphics.Bitmap;
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import android.graphics.Canvas;
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@ -9,19 +7,20 @@ import android.graphics.Color;
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import android.graphics.Matrix;
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import android.graphics.Paint;
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import android.os.Bundle;
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import android.os.Environment;
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import android.util.Log;
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import android.view.MotionEvent;
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import android.view.View;
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import android.widget.Button;
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import android.view.ViewTreeObserver;
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import android.widget.ImageButton;
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import android.widget.ImageView;
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import android.widget.RelativeLayout;
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import net.micode.notes.R;
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import java.io.File;
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import java.io.FileNotFoundException;
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import java.io.FileOutputStream;
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import java.io.IOException;
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import java.io.OutputStream;
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import java.text.SimpleDateFormat;
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import java.util.Date;
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@ -31,15 +30,16 @@ public class DrawActivity extends Activity {
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private Canvas canvas;
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private Paint paint;
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// 重置按钮
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private Button reset_btn;
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private Button save_paint;
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private ImageButton reset_btn;
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private ImageButton save_paint;
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private boolean if_draw = false;
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@Override
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protected void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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setContentView(R.layout.activity_second);
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img = (ImageView) findViewById(R.id.draw);
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reset_btn = (Button) findViewById(R.id.reset);
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reset_btn = (ImageButton) findViewById(R.id.reset);
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reset_btn.setOnClickListener(new View.OnClickListener() {
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@Override
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public void onClick(View v) {
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@ -47,14 +47,16 @@ public class DrawActivity extends Activity {
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showImage();
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}
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});
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save_paint = (Button)findViewById(R.id.save);
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save_paint = (ImageButton)findViewById(R.id.save);
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save_paint.setOnClickListener(new View.OnClickListener() {
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@Override
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public void onClick(View view) {
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String path = saveBitmap();
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getIntent().putExtra("path", path);
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setResult(1, getIntent());
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Log.i(null, path);
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if (if_draw) {
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String path = saveBitmap();
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getIntent().putExtra("path", path);
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setResult(1, getIntent());
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Log.i(null, path);
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}
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finish();
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}
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});
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@ -63,46 +65,62 @@ public class DrawActivity extends Activity {
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}
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private void showImage() {
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// 创建一张空白图片
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mBitmap = Bitmap.createBitmap(720, 1280, Bitmap.Config.ARGB_8888);
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// 创建一张画布
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canvas = new Canvas(mBitmap);
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// 画布背景为白色
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canvas.drawColor(Color.WHITE);
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// 创建画笔
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paint = new Paint();
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// 画笔颜色为蓝色
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paint.setColor(Color.BLUE);
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// 宽度5个像素
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paint.setStrokeWidth(5);
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// 先将白色背景画上
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canvas.drawBitmap(mBitmap, new Matrix(), paint);
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img.setImageBitmap(mBitmap);
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img.setOnTouchListener(new View.OnTouchListener() {
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int startX;
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int startY;
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ImageView huabu = (ImageView) findViewById(R.id.draw);
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ViewTreeObserver vto = huabu.getViewTreeObserver();
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vto.addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
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@Override
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public boolean onTouch(View v, MotionEvent event) {
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switch (event.getAction()) {
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case MotionEvent.ACTION_DOWN:
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// 获取手按下时的坐标
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startX = (int) event.getX();
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startY = (int) event.getY();
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break;
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case MotionEvent.ACTION_MOVE:
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// 获取手移动后的坐标
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int endX = (int) event.getX();
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int endY = (int) event.getY();
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// 在开始和结束坐标间画一条线
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canvas.drawLine(startX, startY, endX, endY, paint);
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// 刷新开始坐标
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startX = (int) event.getX();
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startY = (int) event.getY();
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img.setImageBitmap(mBitmap);
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break;
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}
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return true;
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public void onGlobalLayout() {
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huabu.getViewTreeObserver().removeGlobalOnLayoutListener(this);
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// 获取线性布局控件的高
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int height = huabu.getHeight();
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// 获取线性布局控件的宽
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int width = huabu.getWidth();
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//按照画布控件大小创建画布
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mBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
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// 创建一张画布
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canvas = new Canvas(mBitmap);
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// 画布背景为白色
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canvas.drawColor(Color.WHITE);
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// 创建画笔
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paint = new Paint();
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// 画笔颜色为蓝色
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paint.setColor(Color.BLUE);
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// 宽度5个像素
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paint.setStrokeWidth(5);
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//接缝处圆滑
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paint.setStrokeCap(Paint.Cap.ROUND);
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paint.setStrokeJoin(Paint.Join.ROUND);
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// 先将白色背景画上
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canvas.drawBitmap(mBitmap, new Matrix(), paint);
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img.setImageBitmap(mBitmap);
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img.setOnTouchListener(new View.OnTouchListener() {
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int startX;
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int startY;
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@Override
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public boolean onTouch(View v, MotionEvent event) {
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if_draw = true;
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switch (event.getAction()) {
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case MotionEvent.ACTION_DOWN:
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// 获取手按下时的坐标
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startX = (int) event.getX();
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startY = (int) event.getY();
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break;
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case MotionEvent.ACTION_MOVE:
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// 获取手移动后的坐标
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int endX = (int) event.getX();
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int endY = (int) event.getY();
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// 在开始和结束坐标间画一条线
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canvas.drawLine(startX, startY, endX, endY, paint);
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// 刷新开始坐标
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startX = (int) event.getX();
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startY = (int) event.getY();
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img.setImageBitmap(mBitmap);
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break;
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}
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return true;
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}
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});
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}
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});
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}
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