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Android 調用相冊 拍照 實現係統控件縮放 切割圖片

https://blog.csdn.net/xys289187120/article/details/6575830

android 下如果做處理圖片的軟件 可以調用係統的控件 實現縮放切割圖片 非常好的效果 今天寫了一個demo分享給大家 嘿嘿。

  1. package cn.m15.test;
  3. import java.io.ByteArrayOutputStream;
  4. import java.io.File;
  5. import android.app.Activity;
  6. import android.content.Intent;
  7. import android.graphics.Bitmap;
  8. import android.net.Uri;
  9. import android.os.Bundle;
  10. import android.os.Environment;
  11. import android.provider.MediaStore;
  12. import android.view.View;
  13. import android.view.View.OnClickListener;
  14. import android.widget.Button;
  15. import android.widget.ImageView;
  17. public class testActivity extends Activity {
  19. public static final int NONE = 0;
  20. public static final int PHOTOHRAPH = 1;// 拍照
  21. public static final int PHOTOZOOM = 2; // 縮放
  22. public static final int PHOTORESOULT = 3;// 結果
  24. public static final String IMAGE_UNSPECIFIED = "image/*";
  25. ImageView imageView = null;
  26. Button button0 = null;
  27. Button button1 = null;
  29. @Override
  30. public void onCreate(Bundle savedInstanceState) {
  31. super.onCreate(savedInstanceState);
  32. setContentView(R.layout.main);
  33. imageView = (ImageView) findViewById(R.id.imageID);
  34. button0 = (Button) findViewById(R.id.btn_01);
  35. button1 = (Button) findViewById(R.id.btn_02);
  37. button0.setOnClickListener(new OnClickListener() {
  38. @Override
  39. public void onClick(View v) {
  40. Intent intent = new Intent(Intent.ACTION_PICK, null);
  41. intent.setDataAndType(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, IMAGE_UNSPECIFIED);
  42. startActivityForResult(intent, PHOTOZOOM);
  43. }
  44. });
  46. button1.setOnClickListener(new OnClickListener() {
  48. @Override
  49. public void onClick(View v) {
  50. Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
  51. intent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(new File(Environment.getExternalStorageDirectory(), "temp.jpg")));
  52. startActivityForResult(intent, PHOTOHRAPH);
  53. }
  54. });
  55. }
  57. @Override
  58. protected void onActivityResult(int requestCode, int resultCode, Intent data) {
  59. if (resultCode == NONE)
  60. return;
  61. // 拍照
  62. if (requestCode == PHOTOHRAPH) {
  63. //設置文件保存路徑這裏放在跟目錄下
  64. File picture = new File(Environment.getExternalStorageDirectory() + "/temp.jpg");
  65. startPhotoZoom(Uri.fromFile(picture));
  66. }
  68. if (data == null)
  69. return;
  71. // 讀取相冊縮放圖片
  72. if (requestCode == PHOTOZOOM) {
  73. startPhotoZoom(data.getData());
  74. }
  75. // 處理結果
  76. if (requestCode == PHOTORESOULT) {
  77. Bundle extras = data.getExtras();
  78. if (extras != null) {
  79. Bitmap photo = extras.getParcelable("data");
  80. ByteArrayOutputStream stream = new ByteArrayOutputStream();
  81. photo.compress(Bitmap.CompressFormat.JPEG, 75, stream);// (0 - 100)壓縮文件
  82. imageView.setImageBitmap(photo);
  83. }
  85. }
  87. super.onActivityResult(requestCode, resultCode, data);
  88. }
  90. public void startPhotoZoom(Uri uri) {
  91. Intent intent = new Intent("com.android.camera.action.CROP");
  92. intent.setDataAndType(uri, IMAGE_UNSPECIFIED);
  93. intent.putExtra("crop", "true");
  94. // aspectX aspectY 是寬高的比例
  95. intent.putExtra("aspectX", 1);
  96. intent.putExtra("aspectY", 1);
  97. // outputX outputY 是裁剪圖片寬高
  98. intent.putExtra("outputX", 64);
  99. intent.putExtra("outputY", 64);
  100. intent.putExtra("return-data", true);
  101. startActivityForResult(intent, PHOTORESOULT);
  102. }
  103. }
package cn.m15.test; import java.io.ByteArrayOutputStream; import java.io.File; import android.app.Activity; 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.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.ImageView; public class testActivity extends Activity { public static final int NONE = 0; public static final int PHOTOHRAPH = 1;// 拍照 public static final int PHOTOZOOM = 2; // 縮放 public static final int PHOTORESOULT = 3;// 結果 public static final String IMAGE_UNSPECIFIED = "image/*"; ImageView imageView = null; Button button0 = null; Button button1 = null; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); imageView = (ImageView) findViewById(R.id.imageID); button0 = (Button) findViewById(R.id.btn_01); button1 = (Button) findViewById(R.id.btn_02); button0.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { Intent intent = new Intent(Intent.ACTION_PICK, null); intent.setDataAndType(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, IMAGE_UNSPECIFIED); startActivityForResult(intent, PHOTOZOOM); } }); button1.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE); intent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(new File(Environment.getExternalStorageDirectory(), "temp.jpg"))); startActivityForResult(intent, PHOTOHRAPH); } }); } @Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { if (resultCode == NONE) return; // 拍照 if (requestCode == PHOTOHRAPH) { //設置文件保存路徑這裏放在跟目錄下 File picture = new File(Environment.getExternalStorageDirectory() + "/temp.jpg"); startPhotoZoom(Uri.fromFile(picture)); } if (data == null) return; // 讀取相冊縮放圖片 if (requestCode == PHOTOZOOM) { startPhotoZoom(data.getData()); } // 處理結果 if (requestCode == PHOTORESOULT) { Bundle extras = data.getExtras(); if (extras != null) { Bitmap photo = extras.getParcelable("data"); ByteArrayOutputStream stream = new ByteArrayOutputStream(); photo.compress(Bitmap.CompressFormat.JPEG, 75, stream);// (0 - 100)壓縮文件 imageView.setImageBitmap(photo); } } super.onActivityResult(requestCode, resultCode, data); } public void startPhotoZoom(Uri uri) { Intent intent = new Intent("com.android.camera.action.CROP"); intent.setDataAndType(uri, IMAGE_UNSPECIFIED); intent.putExtra("crop", "true"); // aspectX aspectY 是寬高的比例 intent.putExtra("aspectX", 1); intent.putExtra("aspectY", 1); // outputX outputY 是裁剪圖片寬高 intent.putExtra("outputX", 64); intent.putExtra("outputY", 64); intent.putExtra("return-data", true); startActivityForResult(intent, PHOTORESOULT); } }
  1. <?xml version="1.0" encoding="utf-8"?>
  2. <LinearLayout xmlns:android="https://schemas.android.com/apk/res/android"
  3. android:orientation="vertical" android:layout_width="fill_parent"
  4. android:layout_height="fill_parent">
  5. <TextView android:layout_width="fill_parent"
  6. android:layout_height="wrap_content" android:text="@string/hello" />
  7. <ImageView android:id="@+id/imageID"
  8. android:adjustViewBounds="true" android:maxWidth="50dip"
  9. android:maxHeight="50dip" android:layout_width="wrap_content"
  10. android:layout_height="wrap_content" />
  11. <Button android:id="@+id/btn_01" android:layout_height="50dip"
  12. android:text="相冊" android:layout_width="150dip"/>
  13. <Button android:id="@+id/btn_02" android:layout_height="50dip"
  14. android:text="拍照" android:layout_width="150dip"/>
  15. </LinearLayout>


最後更新：2017-04-02 16:47:36

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