Android, How can I get text from TextView in OnClick

问题

I have some TextView and each have an OnClickListener. I would like get information in this method to TextView

TextView tv2 = new TextView(this,(String)book.get(i),this);
tv2.setOnClickListener(new OnClickListener() {

    public void onClick(View v) {
        Intent intent = new Intent(Contact.this,Discution.class);
        //String str = this.getText(); //like this
        startActivity(intent);
    }
});

How can I do : this.getText(); in an OnClickListener ?

回答1:

tv2.setOnClickListener(new OnClickListener() {

public void onClick(View v) {
    Intent intent = new Intent(Contact.this,Discution.class);

            String str = tv2.getText().toString(); 

            startActivity(intent);
}

回答2:

This is wrong

TextView tv2 = new TextView(this,(String)book.get(i),this);

You will need TextView to be final and the constructor should match any of the below

TextView(Context context)
TextView(Context context, AttributeSet attrs)
TextView(Context context, AttributeSet attrs, int defStyle)

It should be

final TextView tv2 = new TextView(this);

You are not using any of the above. Totally wrong

Then inside onClick

String str = tv2.getText().toString();

Its declared final cause you access tv2 inside annonymous inner class.

http://docs.oracle.com/javase/tutorial/java/javaOO/anonymousclasses.html#accessing

You can also use the View v.

TextView tv = (TextView) v;
String str = tv.getText().toString();

回答3:

Just use: tv2 in place of this.

回答4:

Use this

tv2.getText().toString;

来源：https://stackoverflow.com/questions/23060792/android-how-can-i-get-text-from-textview-in-onclick

标签

java

android

onclick

textview