Android實現圖片切分與拼合
阿新 • • 發佈:2019-02-19
直接上程式碼:
package com.example.uitest; import java.util.ArrayList; import java.util.List; import java.util.Timer; import java.util.TimerTask; import android.app.Activity; import android.content.Intent; import android.content.res.Resources; import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.graphics.Canvas; import android.graphics.Bitmap.Config; import android.graphics.drawable.BitmapDrawable; import android.os.Bundle; import android.os.Handler; import android.os.Message; import android.view.View; import android.widget.Button; import android.widget.ImageView; public class MainActivity extends Activity { ImageView mImage; ImageView mImage2; private int X_SPLIT = 4; private int Y_SPLIT = 4; Bitmap pre = null; List<ImagePiece> pieces = null; int pieceWidth; int pieceHeight; int mCurMax; int mCurIndex; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); Button btn = (Button) findViewById(R.id.button1); mImage = (ImageView) findViewById(R.id.image); mImage2 = (ImageView) findViewById(R.id.image2); btn.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { // TODO Auto-generated method stub Intent i = new Intent(); i.setClass(MainActivity.this, SecondActivity.class); MainActivity.this.startActivity(i); } }); Resources res = getResources(); final Bitmap bmp = BitmapFactory.decodeResource(res, R.drawable.tt); pieces = new ArrayList<ImagePiece>(X_SPLIT * Y_SPLIT); pieces = ImageSplitter.split(bmp, X_SPLIT, Y_SPLIT); int width = bmp.getWidth(); int height = bmp.getHeight(); pieceWidth = width / X_SPLIT; pieceHeight = height / Y_SPLIT; mCurMax = X_SPLIT * Y_SPLIT; mCurIndex = 1; for (int i = 0; i < Y_SPLIT; i++) { for (int j = 0; j < X_SPLIT; j++) { ImagePiece piece = new ImagePiece(); piece.index = j + i * X_SPLIT; int xValue = j * pieceWidth; int yValue = i * pieceHeight; piece.bitmap = Bitmap.createBitmap(bmp, xValue, yValue, pieceWidth, pieceHeight); pieces.add(piece); } } pre = pieces.get(0).bitmap; mImage.setBackgroundResource(R.drawable.tt); timer.schedule(task, 2000, 2000); // 1s後執行task,經過1s再次執行 mImage2.setBackgroundDrawable(new BitmapDrawable(pre)); } Handler handler = new Handler() { public void handleMessage(Message msg) { if (msg.what == 1 && mCurIndex < X_SPLIT * Y_SPLIT) { // tvShow.setText(Integer.toString(i++)); int i = mCurIndex / X_SPLIT;//1 int j = mCurIndex % Y_SPLIT;//0 Bitmap second = pieces.get(mCurIndex).bitmap; Bitmap result = Bitmap.createBitmap(pieceWidth * Y_SPLIT, pieceHeight * (i + 1), Config.ARGB_8888); Canvas canvas = new Canvas(result); canvas.drawBitmap(pre, 0, 0, null); //mImage.setBackgroundDrawable(new BitmapDrawable(result)); canvas.drawBitmap(second, pieceWidth * j, pieceHeight * i, null); mImage2.setBackgroundDrawable(new BitmapDrawable(result)); pre = result; mCurIndex++; super.handleMessage(msg); } super.handleMessage(msg); }; }; Timer timer = new Timer(); TimerTask task = new TimerTask() { @Override public void run() { // 需要做的事:傳送訊息 Message message = new Message(); message.what = 1; handler.sendMessage(message); } }; }