实例介绍
【实例简介】
【实例截图】
【实例截图】
【核心代码】
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 | package com.example.croppersample;import android.app.Activity;import android.graphics.Bitmap;import android.graphics.Typeface;import android.os.Bundle;import android.view.Menu;import android.view.View;import android.view.ViewGroup;import android.view.Window;import android.widget.AdapterView;import android.widget.Button;import android.widget.CompoundButton;import android.widget.CompoundButton.OnCheckedChangeListener;import android.widget.EditText;import android.widget.ImageView;import android.widget.SeekBar;import android.widget.SeekBar.OnSeekBarChangeListener;import android.widget.Spinner;import android.widget.TextView;import android.widget.ToggleButton;import com.edmodo.cropper.CropImageView;public class MainActivity extends Activity { // Static final constants private static final int DEFAULT_ASPECT_RATIO_VALUES = 10; private static final int ROTATE_NINETY_DEGREES = 90; private static final String ASPECT_RATIO_X = "ASPECT_RATIO_X"; private static final String ASPECT_RATIO_Y = "ASPECT_RATIO_Y"; private static final int ON_TOUCH = 1; // Instance variables private int mAspectRatioX = DEFAULT_ASPECT_RATIO_VALUES; private int mAspectRatioY = DEFAULT_ASPECT_RATIO_VALUES; Bitmap croppedImage; // Saves the state upon rotating the screen/restarting the activity @Override protected void onSaveInstanceState(Bundle bundle) { super.onSaveInstanceState(bundle); bundle.putInt(ASPECT_RATIO_X, mAspectRatioX); bundle.putInt(ASPECT_RATIO_Y, mAspectRatioY); } // Restores the state upon rotating the screen/restarting the activity @Override protected void onRestoreInstanceState(Bundle bundle) { super.onRestoreInstanceState(bundle); mAspectRatioX = bundle.getInt(ASPECT_RATIO_X); mAspectRatioY = bundle.getInt(ASPECT_RATIO_Y); } public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); this.requestWindowFeature(Window.FEATURE_NO_TITLE); setContentView(R.layout.activity_main); // Sets fonts for all Typeface mFont = Typeface.createFromAsset(getAssets(), "Roboto-Thin.ttf"); ViewGroup root = (ViewGroup) findViewById(R.id.mylayout); setFont(root, mFont); // Initialize components of the app final CropImageView cropImageView = (CropImageView) findViewById(R.id.CropImageView); final SeekBar aspectRatioXSeek = (SeekBar) findViewById(R.id.aspectRatioXSeek); final SeekBar aspectRatioYSeek = (SeekBar) findViewById(R.id.aspectRatioYSeek); final ToggleButton fixedAspectRatioToggle = (ToggleButton) findViewById(R.id.fixedAspectRatioToggle); Spinner showGuidelinesSpin = (Spinner) findViewById(R.id.showGuidelinesSpin); // Sets sliders to be disabled until fixedAspectRatio is set aspectRatioXSeek.setEnabled(false); aspectRatioYSeek.setEnabled(false); // Set initial spinner value showGuidelinesSpin.setSelection(ON_TOUCH); //Sets the rotate button final Button rotateButton = (Button) findViewById(R.id.Button_rotate); rotateButton.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { cropImageView.rotateImage(ROTATE_NINETY_DEGREES); } }); // Sets fixedAspectRatio fixedAspectRatioToggle.setOnCheckedChangeListener(new OnCheckedChangeListener() { @Override public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) { cropImageView.setFixedAspectRatio(isChecked); if (isChecked) { aspectRatioXSeek.setEnabled(true); aspectRatioYSeek.setEnabled(true); } else { aspectRatioXSeek.setEnabled(false); aspectRatioYSeek.setEnabled(false); } } }); // Sets initial aspect ratio to 10/10, for demonstration purposes cropImageView.setAspectRatio(DEFAULT_ASPECT_RATIO_VALUES, DEFAULT_ASPECT_RATIO_VALUES); // Sets aspectRatioX final TextView aspectRatioX = (TextView) findViewById(R.id.aspectRatioX); aspectRatioXSeek.setOnSeekBarChangeListener(new OnSeekBarChangeListener() { @Override public void onProgressChanged(SeekBar aspectRatioXSeek, int progress, boolean fromUser) { try { mAspectRatioX = progress; cropImageView.setAspectRatio(progress, mAspectRatioY); aspectRatioX.setText(" " progress); } catch (IllegalArgumentException e) { } } @Override public void onStartTrackingTouch(SeekBar seekBar) { } @Override public void onStopTrackingTouch(SeekBar seekBar) { } }); // Sets aspectRatioY final TextView aspectRatioY = (TextView) findViewById(R.id.aspectRatioY); aspectRatioYSeek.setOnSeekBarChangeListener(new OnSeekBarChangeListener() { @Override public void onProgressChanged(SeekBar aspectRatioYSeek, int progress, boolean fromUser) { try { mAspectRatioY = progress; cropImageView.setAspectRatio(mAspectRatioX, progress); aspectRatioY.setText(" " progress); } catch (IllegalArgumentException e) { } } @Override public void onStartTrackingTouch(SeekBar seekBar) { } @Override public void onStopTrackingTouch(SeekBar seekBar) { } }); // Sets up the Spinner showGuidelinesSpin.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() { public void onItemSelected(AdapterView<?> adapterView, View view, int i, long l) { cropImageView.setGuidelines(i); } public void onNothingSelected(AdapterView<?> adapterView) { return; } }); final Button cropButton = (Button) findViewById(R.id.Button_crop); cropButton.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { croppedImage = cropImageView.getCroppedImage(); ImageView croppedImageView = (ImageView) findViewById(R.id.croppedImageView); croppedImageView.setImageBitmap(croppedImage); } }); } /* * Sets the font on all TextViews in the ViewGroup. Searches recursively for * all inner ViewGroups as well. Just add a check for any other views you * want to set as well (EditText, etc.) */ public void setFont(ViewGroup group, Typeface font) { int count = group.getChildCount(); View v; for (int i = 0; i < count; i ) { v = group.getChildAt(i); if (v instanceof TextView || v instanceof EditText || v instanceof Button) { ((TextView) v).setTypeface(font); } else if (v instanceof ViewGroup) setFont((ViewGroup) v, font); } } @Override public boolean onCreateOptionsMenu(Menu menu) { // Inflate the menu; this adds items to the action bar if it is present. getMenuInflater().inflate(R.menu.main, menu); return true; }} |
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