我正在将一个字符串从一个 Activity 发送到我的自定义对话框。
这是我在其中创建 bundle 并插入字符串，然后将其发送到对话 Activity 的 Activity 。
Bundle sendToDialog = new Bundle();
sendToDialog.putString("caloreis", strCalories);
Intent a = new Intent(CaloriesLogMainActivity.this, ActivityDialog.class);
a.putExtras(sendToDialog);
这是自定义对话 Activity ，我在其中尝试从该 Activity 接收 Intent 。 getIntent() 出现错误。我该如何解决这个错误？
public class ActivityDialog {
Context mContext;
Date mDate;
public ActivityDialog(Context context, CaloriesLogMainActivity caloriesLogMainActivity) {
mContext = context;
}
public void show() {
LayoutInflater factory = LayoutInflater.from(mContext);
View view = factory.inflate(R.layout.dialog_activity, null);
AlertDialog.Builder builder = new AlertDialog.Builder((mContext));
final EditText calories = (EditText) view.findViewById(R.id.etCalories);
Bundle recieveFromActivity = getIntent().getExtras();
String strCaloreis = recieveFromActivity.getString("calories");
calories.setText(strCaloreis);
builder.setTitle(R.string.edit_log_title);
builder.setNegativeButton(R.string.create_log_negative_button,
new OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
}
});
builder.setNeutralButton(R.string.create_log_neutral_button, null);
builder.setPositiveButton(R.string.create_log_positive_button, null);
builder.create().show();
builder.setView(view);
builder.create().show();
}
}
最佳答案
你必须扩展 Activity 类，然后只有你可以访问 getIntent()...
所以你的代码应该是这样的
public class ActivityDialog extends Activity{
Context mContext;
Date mDate;
protected void onCreate(Bundle savedInstanceState){
//here you can call getIntent()
}
public void show() {
// or even from here ,you can call getIntent()
LayoutInflater factory = LayoutInflater.from(mContext);
View view = factory.inflate(R.layout.dialog_activity, null);
AlertDialog.Builder builder = new AlertDialog.Builder((mContext));
final EditText calories = (EditText) view.findViewById(R.id.etCalories);
Bundle recieveFromActivity = getIntent().getExtras();
String strCaloreis = recieveFromActivity.getString("calories");
calories.setText(strCaloreis);
builder.setTitle(R.string.edit_log_title);
builder.setNegativeButton(R.string.create_log_negative_button,
new OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
}
});
builder.setNeutralButton(R.string.create_log_neutral_button, null);
builder.setPositiveButton(R.string.create_log_positive_button, null);
builder.create().show();
builder.setView(view);
builder.create().show();
}
}
关于android - 尝试在自定义对话框中使用 getIntent() 会出现错误。解决此错误的解决方案？，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/25269973/