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README.md | 2 years ago |
README.md
protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); this.setContentView(R.layout.note_edit);
if (savedInstanceState == null && !initActivityState(getIntent())) {
finish();
return;
}
initResources();
//根据id获取添加图片按钮
final ImageButton add_img_btn = (ImageButton) findViewById(R.id.add_img_btn);
//为点击图片按钮设置监听器
add_img_btn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Log.d(TAG, "onClick: click add image button");
//ACTION_GET_CONTENT: 允许用户选择特殊种类的数据,并返回(特殊种类的数据:照一张相片或录一段音)
Intent loadImage = new Intent(Intent.ACTION_GET_CONTENT);
//Category属性用于指定当前动作(Action)被执行的环境.
//CATEGORY_OPENABLE; 用来指示一个ACTION_GET_CONTENT的intent
loadImage.addCategory(Intent.CATEGORY_OPENABLE);
loadImage.setType("image/*");
startActivityForResult(loadImage, PHOTO_REQUEST);
}
});
}